{"id":23,"date":"2023-06-27T11:34:58","date_gmt":"2023-06-27T11:34:58","guid":{"rendered":"https:\/\/physigeek.com\/ja\/%e5%b9%b3%e8%a1%a1%e7%8a%b6%e6%85%8b\/"},"modified":"2023-06-27T11:34:58","modified_gmt":"2023-06-27T11:34:58","slug":"%e5%b9%b3%e8%a1%a1%e7%8a%b6%e6%85%8b","status":"publish","type":"post","link":"https:\/\/physigeek.com\/ja\/%e5%b9%b3%e8%a1%a1%e7%8a%b6%e6%85%8b\/","title":{"rendered":"\u5e73\u8861\u6761\u4ef6"},"content":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u5e73\u8861\u72b6\u614b\u3068\u306f\u4f55\u304b\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u4e21\u65b9\u306e\u30d0\u30e9\u30f3\u30b9\u72b6\u614b\u306e\u5b9f\u969b\u306e\u4f8b\u304c\u898b\u3064\u304b\u308a\u3001\u3055\u3089\u306b\u3001\u6bb5\u968e\u7684\u306b\u89e3\u6c7a\u3055\u308c\u308b\u6f14\u7fd2\u3067\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFCuales-son-las-condiciones-de-equilibrio\"><\/span>\u5e73\u8861\u6761\u4ef6\u3068\u306f\u4f55\u3067\u3057\u3087\u3046\u304b?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u7269\u7406\u5b66\u306b\u304a\u3051\u308b<strong>\u5e73\u8861\u6761\u4ef6<\/strong>\u3067\u306f\u3001\u7269\u4f53\u306b\u52a0\u3048\u3089\u308c\u308b\u529b\u306e\u5408\u8a08\u3068\u30e2\u30fc\u30e1\u30f3\u30c8\u306e\u5408\u8a08\u304c\u30bc\u30ed\u306b\u7b49\u3057\u3044\u5834\u5408\u3001\u7269\u4f53\u306f\u5e73\u8861\u72b6\u614b\u306b\u3042\u308b\u3068\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u5e73\u8861\u306b\u306f 2 \u3064\u306e\u6761\u4ef6\u304c\u3042\u308a\u307e\u3059\u30021 \u3064\u76ee\u306e\u6761\u4ef6\u306f\u3001\u5408\u529b\u304c\u30bc\u30ed\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3053\u3068\u3092\u793a\u3057\u30012 \u3064\u76ee\u306e\u6761\u4ef6\u306f\u3001\u5408\u529b\u30e2\u30fc\u30e1\u30f3\u30c8\u304c\u30bc\u30ed\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/conditions-dequilibre.png\" alt=\"\u5e73\u8861\u72b6\u614b\" class=\"wp-image-416\" width=\"258\" height=\"258\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/conditions-dequilibre-300x300.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/conditions-dequilibre-150x150.png 150w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/conditions-dequilibre.png 514w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<\/div>\n<p>\u30b7\u30b9\u30c6\u30e0\u304c\u5e73\u8861\u72b6\u614b\u306b\u3042\u308b\u3068\u307f\u306a\u3055\u308c\u308b\u306b\u306f\u3001\u4e21\u65b9\u306e\u65b9\u7a0b\u5f0f\u304c\u6e80\u305f\u3055\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u30011 \u3064\u306e\u6761\u4ef6\u3060\u3051\u304c\u6e80\u305f\u3055\u308c\u308b\u3060\u3051\u3067\u306f\u5341\u5206\u3067\u306f\u306a\u3044\u3053\u3068\u306b\u7559\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Primera-condicion-de-equilibrio\"><\/span>\u30d0\u30e9\u30f3\u30b9\u306e\u7b2c\u4e00\u6761\u4ef6<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u6700\u521d\u306e\u5e73\u8861\u6761\u4ef6\u306f\u3001<\/strong>\u7269\u4f53\u304c\u4e26\u9032\u5e73\u8861\u72b6\u614b\u306b\u3042\u308b\u305f\u3081\u306b\u306f\u3001\u7269\u4f53\u306b\u52a0\u3048\u3089\u308c\u308b\u529b\u306e\u5408\u8a08\u304c\u30bc\u30ed\u306b\u7b49\u3057\u304f\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u8ad6\u7406\u7684\u306b\u306f\u3001\u529b\u306e\u5408\u8a08\u306f 3 \u3064\u306e\u8ef8\u3059\u3079\u3066\u3067\u30bc\u30ed\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u3069\u306e\u8ef8\u3067\u3082\u529b\u306e\u5408\u8a08\u304c\u6e80\u305f\u3055\u308c\u306a\u3044\u5834\u5408\u3001\u4f53\u306e\u30d0\u30e9\u30f3\u30b9\u306f\u5d29\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-9d6873586b63ccddf575a8ee1c7f5137_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\sum\\vv{F_x}=0\\qquad\\sum\\vv{F_y}=0\\qquad\\sum\\vv{F_z}=0\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"319\" style=\"vertical-align: -8px;\"><\/p>\n<\/p>\n<p>\u3055\u3089\u306b\u3001\u529b\u306e\u5408\u8a08\u304c\u30bc\u30ed\u306e\u5834\u5408\u3001\u7269\u4f53\u306b\u306f\u76f4\u7dda\u52a0\u901f\u5ea6\u304c\u5b58\u5728\u3057\u306a\u3044\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u4e26\u9032\u5e73\u8861\u72b6\u614b\u306b\u3042\u308b\u7269\u4f53\u306f\u3001\u9759\u6b62\u3057\u3066\u3044\u308b (\u901f\u5ea6\u30bc\u30ed) \u3053\u3068\u3082\u3001\u4e00\u5b9a\u306e\u7dda\u5f62\u901f\u5ea6\u3067\u79fb\u52d5\u3057\u3066\u3044\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305d\u3053\u304b\u3089\u30012 \u7a2e\u985e\u306e\u4e26\u9032\u5e73\u8861\u3092\u533a\u5225\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u9759\u7684\u4e26\u9032\u5e73\u8861<\/strong>\uff1a\u6700\u521d\u306e\u5e73\u8861\u6761\u4ef6\u304c\u6e80\u305f\u3055\u308c\u3001\u4f53\u3082\u9759\u6b62\u3057\u3066\u3044\u308b\u3068\u304d\u3002<\/li>\n<li><strong>\u52d5\u7684\u4e26\u9032\u5e73\u8861<\/strong>: \u6700\u521d\u306e\u5e73\u8861\u6761\u4ef6\u304c\u6e80\u305f\u3055\u308c\u3001\u7269\u4f53\u306e\u901f\u5ea6\u304c\u4e00\u5b9a (\u30bc\u30ed\u3068\u306f\u7570\u306a\u308b) \u306e\u3068\u304d\u3002 <\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Segunda-condicion-de-equilibrio\"><\/span> 2 \u756a\u76ee\u306e\u5e73\u8861\u72b6\u614b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>2 \u756a\u76ee\u306e\u5e73\u8861\u72b6\u614b\u306f\u6700\u521d\u306e\u5e73\u8861\u72b6\u614b\u306b\u4f3c\u3066\u3044\u307e\u3059\u304c\u3001\u529b\u306e\u4ee3\u308f\u308a\u306b\u30e2\u30fc\u30e1\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p> <strong>2 \u756a\u76ee\u306e\u5e73\u8861\u6761\u4ef6\u306f\u3001<\/strong>\u7269\u4f53\u306e\u30e2\u30fc\u30e1\u30f3\u30c8\u306e\u5408\u8a08\u304c\u30bc\u30ed\u306e\u5834\u5408\u3001\u7269\u4f53\u306f\u56de\u8ee2\u5e73\u8861\u72b6\u614b\u306b\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<p>\u540c\u69d8\u306b\u3001\u30e2\u30fc\u30e1\u30f3\u30c8\u306e\u5408\u8a08\u306f\u30d5\u30ec\u30fc\u30e0\u306e\u3059\u3079\u3066\u306e\u8ef8\u3067\u30bc\u30ed\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u30012 \u756a\u76ee\u306e\u5e73\u8861\u6761\u4ef6\u306f\u691c\u8a3c\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-ef043ee3ac4a59374afc86a86f450df6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\sum\\vv{M_x}=0\\qquad\\sum\\vv{M_y}=0\\qquad\\sum\\vv{M_z}=0\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"336\" style=\"vertical-align: -8px;\"><\/p>\n<\/p>\n<p>\u3042\u308b\u70b9\u306b\u304a\u3051\u308b\u529b\u306e\u30e2\u30fc\u30e1\u30f3\u30c8 (\u307e\u305f\u306f\u30c8\u30eb\u30af) \u306f\u3001\u529b\u306e\u5024\u306b\u529b\u304b\u3089\u305d\u306e\u70b9\u307e\u3067\u306e\u5782\u76f4\u8ddd\u96e2\u3092\u4e57\u3058\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u8a08\u7b97\u3055\u308c\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-765ae97c83695144c85bb65446416345_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"M=F\\cdot d\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"79\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u540c\u69d8\u306b\u30012 \u756a\u76ee\u306e\u5e73\u8861\u6761\u4ef6\u304c\u6e80\u305f\u3055\u308c\u308b\u306b\u306f\u3001\u7269\u4f53\u306e\u89d2\u52a0\u901f\u5ea6\u304c\u30bc\u30ed\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u3001\u3053\u306e\u72b6\u614b\u3067\u306f\u7269\u4f53\u304c\u56de\u8ee2\u3057\u3066\u3044\u306a\u3044\u304b\u3001\u307e\u305f\u306f\u4e00\u5b9a\u306e\u89d2\u901f\u5ea6\u3067\u56de\u8ee2\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejemplos-de-las-condiciones-de-equilibrio\"><\/span>\u5e73\u8861\u72b6\u614b\u306e\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>2 \u3064\u306e\u5e73\u8861\u72b6\u614b\u306e\u5b9a\u7fa9\u3092\u78ba\u8a8d\u3057\u305f\u5f8c\u3001\u4ee5\u4e0b\u306e\u65e5\u5e38\u751f\u6d3b\u304b\u3089\u306e\u3044\u304f\u3064\u304b\u306e\u4f8b\u3092\u898b\u3066\u3001\u6982\u5ff5\u3092\u5b8c\u5168\u306b\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u7269\u4f53\u304c\u5929\u4e95\u304b\u3089\u540a\u308a\u4e0b\u3052\u3089\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u30b7\u30b9\u30c6\u30e0\u306f\u5b8c\u5168\u306b\u9759\u6b62\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u7269\u4f53\u306f\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u307e\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u306f\u9759\u7684\u5e73\u8861\u72b6\u614b\u306b\u3042\u308b\u3068\u3082\u8a00\u3048\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/premiere-condition-dequilibre.png\" alt=\"\u5e73\u8861\u306e\u6700\u521d\u306e\u6761\u4ef6\" class=\"wp-image-368\" width=\"307\" height=\"307\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/premiere-condition-dequilibre-300x300.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/premiere-condition-dequilibre-150x150.png 150w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/premiere-condition-dequilibre-768x766.png 768w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/premiere-condition-dequilibre.png 1006w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<\/div>\n<p>\u65e5\u5e38\u751f\u6d3b\u306b\u304a\u3051\u308b\u30d0\u30e9\u30f3\u30b9\u72b6\u614b\u306e\u3082\u3046 1 \u3064\u306e\u4f8b\u306f\u3001\u4f53\u91cd\u8a08\u3067\u3059\u3002\u30d0\u30e9\u30f3\u30b9 \u30a2\u30fc\u30e0\u304c\u5b89\u5b9a\u3057\u3066\u56de\u8ee2\u304c\u505c\u6b62\u3059\u308b\u3068\u3001\u30b7\u30b9\u30c6\u30e0\u306f\u9759\u6b62\u3057\u3066\u304a\u308a\u3001\u30d0\u30e9\u30f3\u30b9\u3082\u53d6\u308c\u3066\u3044\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/deuxieme-condition-dequilibre.png\" alt=\"2\u756a\u76ee\u306e\u5e73\u8861\u72b6\u614b\" class=\"wp-image-430\" width=\"286\" height=\"286\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/deuxieme-condition-dequilibre-300x300.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/deuxieme-condition-dequilibre-150x150.png 150w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/deuxieme-condition-dequilibre-768x768.png 768w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/deuxieme-condition-dequilibre.png 781w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejercicios-resueltos-de-las-condiciones-de-equilibrio\"><\/span>\u5e73\u8861\u6761\u4ef6\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3057\u307e\u3057\u305f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 1<\/h3>\n<p>\u8cea\u91cf 12 kg \u306e\u525b\u4f53\u304c\u3001\u6b21\u306e\u56f3\u306b\u793a\u3059\u89d2\u5ea6\u306e 2 \u672c\u306e\u30ed\u30fc\u30d7\u3067\u540a\u308a\u4e0b\u3052\u3089\u308c\u3066\u3044\u308b\u3068\u3059\u308b\u3068\u3001\u4f53\u306e\u5e73\u8861\u3092\u4fdd\u3064\u305f\u3081\u306b\u5404\u30ed\u30fc\u30d7\u304c\u53ca\u307c\u3059\u5fc5\u8981\u306e\u3042\u308b\u529b\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-de-premiere-condition-dequilibre.png\" alt=\"\u7b2c\u4e00\u5e73\u8861\u6761\u4ef6\u306e\u554f\u984c\" class=\"wp-image-372\" width=\"243\" height=\"243\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-de-premiere-condition-dequilibre-300x300.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-de-premiere-condition-dequilibre-150x150.png 150w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-de-premiere-condition-dequilibre.png 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<\/div>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__FFF8E1\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#FFF8E1\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u89e3\u6c7a\u7b56\u3092\u898b\u308b<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u3053\u306e\u7a2e\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u6700\u521d\u306b\u884c\u3046\u5fc5\u8981\u304c\u3042\u308b\u306e\u306f\u3001Figure \u306e\u81ea\u7531\u4f53\u56f3\u3092\u63cf\u304f\u3053\u3068\u3067\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-de-la-premiere-condition-dequilibre.png\" alt=\"\u30d0\u30e9\u30f3\u30b9\u306e\u6700\u521d\u306e\u6761\u4ef6\u306e\u89e3\u6c7a\u3055\u308c\u305f\u6f14\u7fd2\" class=\"wp-image-375\" width=\"282\" height=\"335\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-de-la-premiere-condition-dequilibre-252x300.png 252w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-de-la-premiere-condition-dequilibre.png 600w\" sizes=\"auto, (max-width: 252px) 100vw, 252px\"><\/figure>\n<\/div>\n<p class=\"has-text-align-left\">\u5b9f\u969b\u306b\u306f\u3001\u540a\u308a\u4e0b\u3052\u3089\u308c\u305f\u7269\u4f53\u306b\u4f5c\u7528\u3059\u308b\u529b\u306f\u3001\u91cd\u308a P \u306e\u529b\u3068\u5f26 T <sub>1<\/sub>\u3068 T <sub>2<\/sub>\u306e\u5f35\u529b\u306e 3 \u3064\u3060\u3051\u3067\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002 \uff34 <sub>\uff11\uff58<\/sub> \u3001\uff34 <sub>\uff11\uff59<\/sub> \u3001\uff34 <sub>\uff12\uff58<\/sub>\u304a\u3088\u3073\uff34 <sub>\uff12\uff59<\/sub>\u3067\u8868\u3055\u308c\u308b\u529b\u306f\u3001\u305d\u308c\u305e\u308c\uff34 <sub>\uff11<\/sub>\u304a\u3088\u3073\uff34 <sub>\uff12<\/sub>\u306e\u30d9\u30af\u30c8\u30eb\u6210\u5206\u3067\u3042\u308b\u3002<\/p>\n<p class=\"has-text-align-left\">\u3057\u305f\u304c\u3063\u3066\u3001\u5f26\u306e\u50be\u659c\u89d2\u5ea6\u304c\u308f\u304b\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u5f35\u529b\u306e\u30d9\u30af\u30c8\u30eb\u6210\u5206\u306e\u5f0f\u3092\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-bc09423d2d10435101c7d6b087add524_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\" T_{1x}=T_1\\cdot \\text{cos}(20\u00ba)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"135\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-0603d4b02835532dcefe2290484067fb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\" T_{1y}=T_1\\cdot \\text{sin}(20\u00ba)\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"133\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-0b10a6fc64a1a84b9f4f2c47b7990766_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\" T_{2x}=T_2\\cdot \\text{cos}(55\u00ba)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"135\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-3e7a1dc2ffa7eb20e5e2d9346f0b96a2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\" T_{2y}=T_2\\cdot \\text{sin}(55\u00ba)\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"133\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u4e00\u65b9\u3001\u91cd\u529b\u306e\u529b\u306f\u3001\u91cd\u529b\u306e\u516c\u5f0f\u3092\u9069\u7528\u3057\u3066\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-da2fc72dc768050ef84d2a3c9ee4a281_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=m\\cdot g=12\\cdot 9,81 =117,72 \\N\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"239\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u554f\u984c\u6587\u306f\u3001\u7269\u4f53\u304c\u5e73\u8861\u72b6\u614b\u306b\u3042\u308b\u305f\u3081\u3001\u5782\u76f4\u65b9\u5411\u306e\u529b\u306e\u5408\u8a08\u3068\u6c34\u5e73\u65b9\u5411\u306e\u529b\u306e\u5408\u8a08\u306f\u30bc\u30ed\u306b\u7b49\u3057\u304f\u306a\u308b\u5fc5\u8981\u304c\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u529b\u306e\u65b9\u7a0b\u5f0f\u3092\u78ba\u7acb\u3057\u3001\u305d\u308c\u3089\u3092\u30bc\u30ed\u306b\u7b49\u3057\u304f\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-6532044e76d6b9246f64624159b08c33_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-T_{1x}+T_{2x}=0\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"119\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-52aadf04437252b1f9c17107dfc16a84_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"T_{1y}+T_{2y}-P=0\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"140\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u3053\u3053\u3067\u3001\u5236\u7d04\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u3001\u524d\u306b\u898b\u3064\u3051\u305f\u5f0f\u3067\u7f6e\u304d\u63db\u3048\u307e\u3059\u3002 <\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-4a4993c55ab7f27b6c0b67793ee5ff8a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-T_1\\cdot\\text{cos}(20\u00ba)+T_2\\cdot \\text{cos}(55\u00ba)=0\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"239\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-204773c167037418680872592d118315_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"T_1\\cdot \\text{sin}(20\u00ba)+T_2\\cdot \\text{sin}(55\u00ba)-117.72=0\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"293\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u305d\u3057\u3066\u6700\u5f8c\u306b\u3001\u9023\u7acb\u65b9\u7a0b\u5f0f\u3092\u89e3\u3044\u3066\u529b T <sub>1<\/sub>\u3068 T <sub>2<\/sub>\u306e\u5024\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-694655a52049a536489cebbaef3bc7a2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left.\\begin{array}{l}-T_1\\cdot 0,94+T_2\\cdot 0,57=0\\\\[2ex]T_1\\cdot 0,34+T_2\\cdot 0,82-117 .72=0\\end{array }\\right\\} \\longrightarrow \\ \\begin{array}{c}T_1=69,56 \\ N\\\\[2ex]T_2=114,74 \\ N\\end{array}[\/ latex] \n\n<div class=&quot;wp-block-otfm-box-spoiler-end otfm-sp_end&quot;><\/div>\n<h3 class=&quot;wp-block-heading&quot;> Exercice 2<\/h3>\n<p> Calculer le moment que doit faire le support de la poutre suivante pour qu&#8217;elle soit en \u00e9quilibre de rotation : <\/p>\n<div class=&quot;wp-block-image&quot;>\n<figure class=&quot;aligncenter size-full is-resized&quot;><img decoding=&quot;async&quot; loading=&quot;lazy&quot; src=&quot;https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-deuxieme-condition-dequilibre.png&quot; alt=&quot;Exercice r\u00e9solu de la deuxi\u00e8me condition d'\u00e9quilibre&quot; class=&quot;wp-image-397&quot; width=&quot;237&quot; height=&quot;203&quot; srcset=&quot;https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-deuxieme-condition-dequilibre-300x257.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-deuxieme-condition-dequilibre.png 643w&quot; sizes=&quot;(max-width: 300px) 100vw, 300px&quot;><\/figure>\n<\/div>\n<div class=&quot;wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__FFF8E1&quot; role=&quot;button&quot; tabindex=&quot;0&quot; aria-expanded=&quot;false&quot; data-otfm-spc=&quot;#FFF8E1&quot; style=&quot;text-align:center&quot;>\n<div class=&quot;otfm-sp__title&quot;> <strong>Voir la solution<\/strong><\/div>\n<\/div>\n<p> Pour que la poutre soit en \u00e9quilibre de rotation et que la deuxi\u00e8me condition d&#8217;\u00e9quilibre soit donc remplie, le support doit contrecarrer le moment de torsion g\u00e9n\u00e9r\u00e9 par la force, donc la somme des moments sera nulle. On calcule donc le moment (ou couple) g\u00e9n\u00e9r\u00e9 par la force au niveau de l&#8217;appui : [latex]M_{force}=13\\cdot 9 = 117 \\ Nm&#8221; title=&#8221;Rendered by QuickLaTeX.com&#8221; height=&#8221;343&#8243; width=&#8221;3353&#8243; style=&#8221;vertical-align: 0px;&#8221;><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u305d\u3057\u3066\u30e2\u30fc\u30e1\u30f3\u30c8\u30d0\u30e9\u30f3\u30b9\u65b9\u7a0b\u5f0f\u3092\u8ff0\u3079\u307e\u3059:<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-fdac8512edbbe2c1b6396ee43a776261_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"M_{support}+M_{force}=0\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"170\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u529b\u3092\u751f\u6210\u3059\u308b\u30e2\u30fc\u30e1\u30f3\u30c8\u306f\u753b\u9762\u5185\u3092\u901a\u904e\u3059\u308b\u305f\u3081\u3001\u305d\u306e\u7b26\u53f7\u306f\u8ca0\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-b654ae9d3ab78a23e2f7235a7742a503_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"M_{support}-117=0\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"145\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u305d\u3057\u3066\u6700\u5f8c\u306b\u3001\u65b9\u7a0b\u5f0f\u5185\u306e\u672a\u77e5\u6570\u3092\u89e3\u304d\u307e\u3059\u3002<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-cfe550481f3747f9121d30c3f35f7f85_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"M_{support}=117\\Nm\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"115\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u5f97\u3089\u308c\u305f\u77ac\u9593\u306f\u6b63\u306e\u7b26\u53f7\u3092\u6301\u3061\u3001\u3057\u305f\u304c\u3063\u3066\u305d\u306e\u610f\u5473\u306f\u753b\u9762\u306e\u5916\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 3<\/h3>\n<p>\u6b21\u306e\u56f3\u306b\u793a\u3059\u3088\u3046\u306b\u30012 \u3064\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u30ed\u30fc\u30d7\u3068\u7121\u8996\u3067\u304d\u308b\u8cea\u91cf\u306e\u6ed1\u8eca\u306b\u3088\u3063\u3066\u63a5\u7d9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u7269\u4f53 2 \u306e\u8cea\u91cf\u304c 7 kg \u3067\u3001\u30e9\u30f3\u30d7\u306e\u50be\u659c\u304c 50 \u5ea6\u306e\u5834\u5408\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u304c\u5e73\u8861\u72b6\u614b\u306b\u306a\u308b\u3088\u3046\u306b\u7269\u4f53 1 \u306e\u8cea\u91cf\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u6469\u64e6\u529b\u306f\u7121\u8996\u3067\u304d\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-dequilibre-des-forces.png\" alt=\"\u4e26\u9032\u5e73\u8861\u554f\u984c\" class=\"wp-image-295\" width=\"299\" height=\"240\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-dequilibre-des-forces-300x241.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-dequilibre-des-forces.png 718w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<\/div>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__FFF8E1\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#FFF8E1\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u89e3\u6c7a\u7b56\u3092\u898b\u308b<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u30dc\u30c7\u30a3 1 \u306f\u50be\u659c\u3057\u305f\u659c\u9762\u4e0a\u306b\u3042\u308b\u305f\u3081\u3001\u6700\u521d\u306b\u884c\u3046\u3053\u3068\u306f\u3001\u305d\u306e\u91cd\u91cf\u306e\u529b\u3092\u30d9\u30af\u30c8\u30eb\u5316\u3057\u3066\u659c\u9762\u306e\u8ef8\u306b\u529b\u3092\u6301\u305f\u305b\u308b\u3053\u3068\u3067\u3059\u3002 <\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-35d7a76d4aead5e24628c76e5f80b4eb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P_{1x}=P_1\\cdot \\text{sen}(\\alpha)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"131\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-1a0b77602980cc17cce9b3baef744df8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P_{1y}=P_1\\cdot \\text{cos}(\\alpha)\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"130\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u3057\u305f\u304c\u3063\u3066\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306b\u4f5c\u7528\u3059\u308b\u4e00\u9023\u306e\u529b\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-equilibre-des-forces.png\" alt=\"\u7ffb\u8a33\u30d0\u30e9\u30f3\u30b9\u6f14\u7fd2\u3092\u89e3\u6c7a\u3057\u307e\u3057\u305f\" class=\"wp-image-296\" width=\"338\" height=\"272\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-equilibre-des-forces-300x241.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-equilibre-des-forces.png 718w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<\/div>\n<p class=\"has-text-align-left\">\u554f\u984c\u6587\u306f\u3001\u529b\u306e\u7cfb\u304c\u5e73\u8861\u72b6\u614b\u306b\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u308b\u305f\u3081\u30012 \u3064\u306e\u7269\u4f53\u306f\u5e73\u8861\u72b6\u614b\u306b\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u60c5\u5831\u304b\u3089\u30012 \u3064\u306e\u7269\u4f53\u306e\u5e73\u8861\u65b9\u7a0b\u5f0f\u3092\u5b9a\u5f0f\u5316\u3067\u304d\u307e\u3059\u3002 <\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-ed082b4f064316ab20fb0d26054d3010_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"1\\ \\rightarrow \\ \\begin{cases}P_{1x}=T\\\\[2ex]P_{1y}=N\\end{cases} \\qquad\\qquad 2 \\ \\rightarrow \\ T=P_2[\/latex ] Ainsi, la composante du poids de l'objet 1 inclin\u00e9 dans le sens de la pente doit \u00eatre \u00e9gale au poids de l'objet 2 : [latex]P_{1x}=P_2\" title=\"Rendered by QuickLaTeX.com\" height=\"87\" width=\"1160\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-9b5e757fb28e9dde3aed458f89a3ed53_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P_1\\cdot \\text{sen}(\\alpha)=P_2\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"123\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6b21\u306b\u3001\u91cd\u529b\u306e\u516c\u5f0f\u3092\u9069\u7528\u3057\u3066\u65b9\u7a0b\u5f0f\u3092\u7c21\u7565\u5316\u3057\u307e\u3059\u3002 <\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-06a53a846ad5bc034f69fa05488404c4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"m_1\\cdot g \\cdot \\text{sin}(\\alpha) =m_2 \\cdot g\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"174\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-802fde26f3388538d766a709d60cf48b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"m_1 \\cdot \\text{sin}(\\alpha) =m_2\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"130\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6700\u5f8c\u306b\u3001\u30c7\u30fc\u30bf\u3092\u4ee3\u5165\u3057\u3066\u3001\u7269\u4f53 1 \u306e\u8cea\u91cf\u3092\u6c42\u3081\u307e\u3059\u3002 <\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-0457f85ca65afde96b2e575ce54869dd_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"m_1 \\cdot \\text{sin}(50\u00ba) =7\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"122\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-9a26d132815a0ce878a6ad874c8b40b0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"m_1 =\\cfrac{7}{\\text{sin}(50\u00ba)}\" title=\"Rendered by QuickLaTeX.com\" height=\"44\" width=\"103\" style=\"vertical-align: -17px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-37d57b7e3c4a13f3c4dc4ae981f7d61f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"m_1=9,14\\kg\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"82\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 4<\/h3>\n<p>\u6b21\u306e\u56f3\u304b\u3089\u308f\u304b\u308b\u3088\u3046\u306b\u300110 m \u306e\u6c34\u5e73\u68d2\u304c\u8cea\u91cf 8 kg \u306e\u7269\u4f53\u3092\u652f\u3048\u307e\u3059\u3002\u30b5\u30dd\u30fc\u30c8\u3068\u540a\u308a\u4e0b\u3052\u3089\u308c\u305f\u672c\u4f53\u306e\u9593\u306e\u8ddd\u96e2\u304c\u308f\u304b\u3063\u305f\u5834\u5408\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u56de\u8ee2\u3068\u4e26\u9032\u306e\u30d0\u30e9\u30f3\u30b9\u306b\u3042\u308b\u5834\u5408\u3001\u30b5\u30dd\u30fc\u30c8\u306b\u3088\u3063\u3066\u767a\u63ee\u3055\u308c\u308b\u529b\u306e\u5024\u306f\u3044\u304f\u3089\u3067\u3059\u304b? <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-dequilibre-de-rotation.png\" alt=\"\u56de\u8ee2\u30d0\u30e9\u30f3\u30b9\u306e\u554f\u984c\" class=\"wp-image-355\" width=\"339\" height=\"120\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-dequilibre-de-rotation-300x107.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-dequilibre-de-rotation.png 643w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<\/div>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__FFF8E1\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#FFF8E1\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u89e3\u6c7a\u7b56\u3092\u898b\u308b<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u307e\u305a\u3001\u91cd\u529b\u306e\u516c\u5f0f\u3092\u4f7f\u7528\u3057\u3066\u3001\u6c34\u5e73\u30d0\u30fc\u304c\u652f\u3048\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u91cd\u91cf\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-eb480f5d32a9e25cefacd5f89d407580_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=m\\cdot g=8\\cdot 9,81 =78,48 \\ N\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"244\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u3057\u305f\u304c\u3063\u3066\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u81ea\u7531\u4f53\u56f3\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-rotation-equilibre.png\" alt=\"\u56de\u8ee2\u30d0\u30e9\u30f3\u30b9\u306e\u7df4\u7fd2\u3092\u89e3\u6c7a\u3057\u307e\u3057\u305f\" class=\"wp-image-356\" width=\"340\" height=\"297\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-rotation-equilibre-300x261.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-rotation-equilibre.png 654w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<\/div>\n<p class=\"has-text-align-left\">\u554f\u984c\u6587\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u529b\u306e\u30d0\u30e9\u30f3\u30b9\u306b\u3042\u308b\u305f\u3081\u3001\u3053\u308c\u3089\u3059\u3079\u3066\u306e\u529b\u306e\u5408\u8a08\u304c\u30bc\u30ed\u306b\u306a\u308b\u5fc5\u8981\u304c\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u5e73\u8861\u6761\u4ef6\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u6b21\u306e\u65b9\u7a0b\u5f0f\u3092\u5b9a\u5f0f\u5316\u3067\u304d\u307e\u3059\u3002<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-635096a57ce10781254f283c9807f64c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_A+F_B-P=0\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"136\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u4e00\u65b9\u3067\u3001\u3053\u306e\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u904b\u52d5\u91cf\u306e\u5747\u8861\u306b\u3042\u308b\u3053\u3068\u3082\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30b7\u30b9\u30c6\u30e0\u5185\u306e\u4efb\u610f\u306e\u70b9\u306e\u30e2\u30fc\u30e1\u30f3\u30c8\u306e\u5408\u8a08\u3092\u8003\u616e\u3059\u308b\u3068\u3001\u7d50\u679c\u306f\u30bc\u30ed\u306b\u306a\u308b\u306f\u305a\u3067\u3059\u3002\u307e\u305f\u30012 \u3064\u306e\u30b5\u30dd\u30fc\u30c8\u306e\u3046\u3061\u306e 1 \u3064\u306e\u57fa\u6e96\u70b9\u3092\u53d6\u308b\u3068\u3001\u672a\u77e5\u6570\u304c 1 \u3064\u3042\u308b\u65b9\u7a0b\u5f0f\u304c\u5f97\u3089\u308c\u307e\u3059\u3002 <\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-f1a6d56c3426e8d6c2e890b5e8f4a873_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"M(A)=0\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"79\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-922d5ff929e034db7a9e80d732b0b893_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-P\\cdot 6.5+F_B\\cdot (6.5+3.5)=0\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"233\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u65b9\u7a0b\u5f0f\u306e\u672a\u77e5\u6570\u3092\u89e3\u304f\u3053\u3068\u3067\u3001\u30b5\u30dd\u30fc\u30c8 B \u306b\u3088\u3063\u3066\u767a\u63ee\u3055\u308c\u308b\u529b\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002 <\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-95596edf27bb6086c35473f55465416d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-78.48\\cdot 6.5+F_B\\cdot 10=0\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"197\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-953185a6ad4824b654b8a40e259bbd71_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_B=\\cfrac{78.48\\cdot 6.5}{10}\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"125\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-c5459080e5aa468fa3d77a16a2b0d9b9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_B=51.01\\N\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"87\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u305d\u3057\u3066\u6700\u5f8c\u306b\u3001\u5f97\u3089\u308c\u305f\u5024\u3092\u5782\u76f4\u529b\u306e\u65b9\u7a0b\u5f0f\u306b\u4ee3\u5165\u3059\u308b\u3053\u3068\u3067\u3001\u4ed6\u306e\u30b5\u30dd\u30fc\u30c8\u306b\u52a0\u3048\u3089\u308c\u308b\u529b\u306e\u5f37\u3055\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 <\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-635096a57ce10781254f283c9807f64c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_A+F_B-P=0\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"136\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-36325128977806ddaca1436ffb68dcd4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_A+51,01-78,48=0\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"185\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" 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