{"id":247,"date":"2023-06-23T09:26:11","date_gmt":"2023-06-23T09:26:11","guid":{"rendered":"https:\/\/physigeek.com\/ja\/%e9%80%9a%e5%b8%b8%e3%81%ae%e5%8a%9b\/"},"modified":"2023-06-23T09:26:11","modified_gmt":"2023-06-23T09:26:11","slug":"%e9%80%9a%e5%b8%b8%e3%81%ae%e5%8a%9b","status":"publish","type":"post","link":"https:\/\/physigeek.com\/ja\/%e9%80%9a%e5%b8%b8%e3%81%ae%e5%8a%9b\/","title":{"rendered":"\u901a\u5e38\u306e\u5f37\u5ea6"},"content":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u5782\u76f4\u6297\u529b\u3068\u306f\u4f55\u304b\u3001\u304a\u3088\u3073\u554f\u984c\u306e\u7a2e\u985e\u306b\u5fdc\u3058\u3066\u305d\u308c\u3092\u6c7a\u5b9a\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u5782\u76f4\u529b\u306e\u7279\u5fb4\u3092\u7406\u89e3\u3057\u3001\u3055\u3089\u306b\u3001\u6bb5\u968e\u7684\u306b\u89e3\u6c7a\u3055\u308c\u308b\u6f14\u7fd2\u3067\u3053\u306e\u30bf\u30a4\u30d7\u306e\u529b\u3092\u7df4\u7fd2\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue-es-la-fuerza-normal\"><\/span>\u5782\u76f4\u6297\u529b\u3068\u306f\u4f55\u3067\u3059\u304b?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u7269\u7406\u5b66\u3067\u306f\u3001<strong>\u5782\u76f4\u6297\u529b\u306f<\/strong>\u3001\u305d\u306e\u4e0a\u306b\u7f6e\u304b\u308c\u3066\u3044\u308b\u7269\u4f53\u306e\u8868\u9762\u306b\u3088\u3063\u3066\u53ca\u307c\u3055\u308c\u308b\u529b\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u5782\u76f4\u6297\u529b\u306e\u65b9\u5411\u306f\u8868\u9762\u306b\u5bfe\u3057\u3066\u5782\u76f4\u3067\u3042\u308a\u3001\u5782\u76f4\u6297\u529b\u306e\u65b9\u5411\u306f\u5916\u5074\u306b\u306a\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u8868\u9762\u306f\u672c\u4f53\u306b\u5411\u304b\u3063\u3066\u5782\u76f4\u6297\u529b\u3092\u52a0\u3048\u307e\u3059\u3002<\/p>\n<p>\u4e00\u822c\u306b\u3001\u5782\u76f4\u6297\u529b\u306f\u3001\u5730\u7403\u304c\u8cea\u91cf\u3092\u6301\u3064\u7269\u4f53\u306b\u53ca\u307c\u3059\u91cd\u529b\u3067\u3042\u308b<a href=\"https:\/\/physigeek.com\/ja\/\u7269\u7406\u7684\u306a\u91cd\u3055\/\">\u91cd\u529b<\/a>\u306b\u5bfe\u6297\u3059\u308b\u50cd\u304d\u3092\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u672c\u4f53\u304c\u50be\u659c\u9762\u306b\u7f6e\u304b\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u5782\u76f4\u6297\u529b\u306e\u5024\u304c\u5341\u5206\u3067\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u3067\u306f\u3001\u50be\u659c\u9762\u306e\u5782\u76f4\u6297\u529b\u304c\u3069\u306e\u3088\u3046\u306b\u8a08\u7b97\u3055\u308c\u308b\u304b\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001<strong><u style=\"text-decoration-color:#4fd12f\">\u5782\u76f4\u6297\u529b\u306e\u7279\u5fb4\u306f<\/u><\/strong>\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:12px\"><span style=\"color:#101010;font-weight: normal;\">\u5782\u76f4\u6297\u529b\u306f\u63a5\u89e6\u529b\u3067\u3059\u3002\u3064\u307e\u308a\u30012 \u3064\u306e\u8868\u9762\u304c\u63a5\u89e6\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u306e\u307f\u9069\u7528\u3067\u304d\u307e\u3059\u3002<\/span><\/li>\n<li style=\"margin-bottom:12px\"><span style=\"color:#101010;font-weight: normal;\">\u6cd5\u7dda\u529b\u306e\u65b9\u5411\u306f\u3001\u7269\u4f53\u304c\u6b8b\u308b\u8868\u9762\u306b\u5bfe\u3057\u3066\u5782\u76f4\u3067\u3059\u3002<\/span><\/li>\n<li style=\"margin-bottom:12px\"><span style=\"color:#101010;font-weight: normal;\">\u5782\u76f4\u6297\u529b\u304c\u30dc\u30c7\u30a3\u306b\u304b\u304b\u308b\u306e\u306f\u8868\u9762\u3067\u3042\u308b\u305f\u3081\u3001\u5782\u76f4\u6297\u529b\u306e\u65b9\u5411\u306f\u5e38\u306b\u5916\u5074\u306b\u306a\u308a\u307e\u3059\u3002<\/span><\/li>\n<li style=\"margin-bottom:12px\"><span style=\"color:#101010;font-weight: normal;\">\u4e00\u822c\u306b\u3001\u5782\u76f4\u6297\u529b\u306e\u5927\u304d\u3055\u306f\u3001\u7d50\u679c\u3068\u3057\u3066\u751f\u3058\u308b\u529b\u306e\u652f\u6301\u9762\u3078\u306e\u6295\u5f71\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002<\/span><\/li>\n<li><span style=\"color:#101010;font-weight: normal;\">\u901a\u5e38\u3001\u5782\u76f4\u529b\u306f\u8a18\u53f7 N \u307e\u305f\u306f F <sub>N<\/sub>\u3067\u8868\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/span> <\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Como-calcular-la-fuerza-normal\"><\/span>\u5782\u76f4\u6297\u529b\u306e\u8a08\u7b97\u65b9\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u4e00\u822c\u306b\u3001<strong>\u5782\u76f4\u529b\u3092\u8a08\u7b97\u3059\u308b\u306b\u306f\u3001<\/strong>\u5782\u76f4\u529b\u306e\u5408\u8a08\u3068\u6c34\u5e73\u529b\u306e\u5408\u8a08\u304c\u30bc\u30ed\u306b\u7b49\u3057\u3044\u3068\u304d\u306b\u7269\u4f53\u304c\u5e73\u8861\u72b6\u614b\u306b\u3042\u308b\u3053\u3068\u3092\u78ba\u7acb\u3059\u308b\u5e73\u8861\u65b9\u7a0b\u5f0f\u3092\u9069\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u5e73\u8861\u6761\u4ef6\u3092\u554f\u984c\u306b\u9069\u7528\u3059\u308b\u3068\u3001\u63d0\u6848\u3055\u308c\u305f\u65b9\u7a0b\u5f0f\u304b\u3089\u5782\u76f4\u6297\u529b\u3092\u89e3\u304f\u3053\u3068\u304c\u3067\u304d\u3001\u5782\u76f4\u6297\u529b\u306e\u5024\u3092\u6c7a\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-a9333695ba02f6e089d628fe3622a2e5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{c}\\displaystyle\\sum \\vv{F_x}=0\\\\[2ex]\\displaystyle\\sum \\vv{F_y}=0\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"65\" width=\"81\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejemplo-del-calculo-de-la-fuerza-normal\"><\/span>\u5782\u76f4\u6297\u529b\u306e\u8a08\u7b97\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u5782\u76f4\u6297\u529b\u306e\u5b9a\u7fa9\u304c\u308f\u304b\u3063\u305f\u306e\u3067\u3001\u5782\u76f4\u6297\u529b\u3092\u8a08\u7b97\u3059\u308b\u5177\u4f53\u7684\u306a\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<ul>\n<li>\u4f53\u91cd8kg\u306e\u4f53\u304c\u5e73\u3089\u306a\u5730\u9762\u306b\u7f6e\u304b\u308c\u3066\u3044\u307e\u3059\u3002\u5730\u9762\u304b\u3089\u8eab\u4f53\u306b\u304b\u304b\u308b\u5782\u76f4\u6297\u529b\u306e\u5024\u306f\u3044\u304f\u3089\u3067\u3059\u304b?<\/li>\n<\/ul>\n<p>\u3053\u306e\u554f\u984c\u3067\u306f\u3001\u7269\u4f53\u306f\u5e73\u3089\u306a\u9762\u4e0a\u306b\u9759\u6b62\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u7269\u4f53\u306b\u4f5c\u7528\u3059\u308b\u529b\u306f\u91cd\u91cf\u306e\u529b\u3068\u5782\u76f4\u6297\u529b\u3060\u3051\u3067\u3059\u3002 <\/p>\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/force-et-poids-normaux.png\" alt=\"\u901a\u5e38\u306e\u7b4b\u529b\u3068\u4f53\u91cd\" class=\"wp-image-4215\" width=\"273\" height=\"297\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/force-et-poids-normaux-275x300.png 275w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/force-et-poids-normaux.png 570w\" sizes=\"auto, (max-width: 275px) 100vw, 275px\"><\/figure>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u7269\u4f53\u304c\u5e73\u9762\u4e0a\u3067\u5e73\u8861\u72b6\u614b\u306b\u3042\u308b\u305f\u3081\u306b\u306f\u3001\u6cd5\u7dda\u6297\u529b (N) \u3068\u91cd\u91cf\u529b (P) \u304c\u7b49\u3057\u304f\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u6cd5\u7dda\u3068\u30a6\u30a7\u30a4\u30c8\u306f\u540c\u3058\u65b9\u5411\u3001\u540c\u3058\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u6301\u3061\u307e\u3059\u304c\u3001\u65b9\u5411\u306f\u53cd\u5bfe\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-318d3aaff48777c13e5ac24cb775f6b0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"N=P\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"54\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u6cd5\u7dda\u529b\u306e\u5024\u3092\u6c7a\u5b9a\u3059\u308b\u306b\u306f\u3001\u7269\u4f53\u306e\u91cd\u91cf\u3092\u8a08\u7b97\u3059\u308b\u3060\u3051\u3067\u5341\u5206\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u7269\u4f53\u306e\u8cea\u91cf\u3068\u91cd\u529b\u306b\u3088\u308b\u52a0\u901f\u5ea6\u3092\u4e57\u7b97\u3057\u305f\u3082\u306e\u306b\u76f8\u5f53\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-a7355a420808c17875e97713c4bef5ec_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"N=P=m\\cdot g=8 \\cdot 9,81 = 78,48 \\ N\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"283\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Fuerza-normal-en-un-plano-inclinado\"><\/span>\u50be\u659c\u9762\u4e0a\u306e\u5782\u76f4\u6297\u529b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u3053\u3053\u3067\u306f\u3001\u50be\u659c\u9762\u306e\u5782\u76f4\u6297\u529b\u306f\u5e73\u9762\u304b\u50be\u659c\u304b\u306b\u3088\u3063\u3066\u5024\u304c\u5909\u308f\u308b\u305f\u3081\u3001\u305d\u306e\u5f0f\u3092\u5c0e\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u50be\u659c\u9762\u4e0a\u306b\u3042\u308b\u7269\u4f53\u306b\u4f5c\u7528\u3059\u308b\u529b\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 <\/p>\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/force-normale-sur-un-plan-incline.png\" alt=\"\u50be\u659c\u9762\u4e0a\u306e\u5782\u76f4\u6297\u529b\" class=\"wp-image-4220\" width=\"308\" height=\"417\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/force-normale-sur-un-plan-incline-222x300.png 222w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/force-normale-sur-un-plan-incline-757x1024.png 757w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/force-normale-sur-un-plan-incline-768x1038.png 768w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/force-normale-sur-un-plan-incline.png 770w\" sizes=\"auto, (max-width: 222px) 100vw, 222px\"><\/figure>\n<p>\u4e0a\u56f3\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002 \u5e73\u9762\u304c\u50be\u3044\u3066\u3044\u308b\u5834\u5408\u3001\u5e73\u9762\u306b\u5e73\u884c\u306a\u65b9\u5411 (\u8ef8 1) \u3068\u5e73\u9762\u306b\u5782\u76f4\u306a\u65b9\u5411 (\u8ef8 2) \u3092\u8ef8\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u3068\u4fbf\u5229\u3067\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u30d0\u30e9\u30f3\u30b9\u306e\u65b9\u7a0b\u5f0f\u3092\u8ff0\u3079\u308b\u306e\u304c\u7c21\u5358\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u50be\u659c\u9762\u4e0a\u306e\u6cd5\u7dda\u529b\u3092\u8a08\u7b97\u3059\u308b\u306b\u306f\u3001<\/strong>\u50be\u659c\u9762\u306b\u5782\u76f4\u306a\u8ef8\u306b\u5e73\u8861\u6761\u4ef6\u3092\u9069\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u7269\u4f53\u304c\u3053\u306e\u8ef8\u4e0a\u3067\u306f\u5e73\u8861\u72b6\u614b\u306b\u3042\u308b\u304c\u3001\u9762\u306b\u5e73\u884c\u306a\u8ef8\u4e0a\u3067\u306f\u5e73\u8861\u72b6\u614b\u306b\u3042\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3067\u304d\u308b\u305f\u3081\u3067\u3059\u3002 \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-badff1735c827c6562a4e074ea4b6bd2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle\\sum \\vv{F_2}=0\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"80\" style=\"vertical-align: -8px;\"><\/p>\n<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u50be\u659c\u9762\u4e0a\u306e\u6cd5\u7dda\u529b\u306f\u3001\u305d\u306e\u9762\u306b\u5782\u76f4\u306a\u8ef8\u306e\u91cd\u91cf\u306e\u6210\u5206\u3068\u7b49\u4fa1\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-ea3f790cf878ca23f77405f73a20e7c6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"N=P_2\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"58\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p>\u5e73\u9762\u306b\u5782\u76f4\u306a\u8ef8\u306e\u91cd\u91cf\u306e\u6210\u5206\u306f\u3001\u91cd\u91cf\u306b\u5e73\u9762\u306e\u50be\u659c\u89d2\u306e\u4f59\u5f26\u3092\u4e57\u3058\u305f\u5f0f\u306b\u7b49\u3057\u304f\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-efeff10487f285abba9d74ee3eba6b45_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P_2=P\\cdot \\cos(\\alpha)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"117\" 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-9fe1bc1d3a7fbacecb2ce1ccc1dadc67_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P_2=m\\cdot g\\cdot \\cos(\\alpha)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"141\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u3064\u307e\u308a\u3001<strong>\u50be\u659c\u9762\u306e\u6cd5\u7dda\u529b\u306e\u516c\u5f0f\u306f<\/strong>\u3001\u6cd5\u7dda\u529b\u306f\u3001\u672c\u4f53\u306e\u8cea\u91cf\u3068\u91cd\u529b\u3068\u9762\u306e\u50be\u659c\u89d2\u306e\u4f59\u5f26\u3092\u4e57\u3058\u305f\u3082\u306e\u306b\u7b49\u3057\u3044\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002 <\/p>\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/formule-de-la-force-normale-dans-un-plan-incline.png\" alt=\"\u50be\u659c\u9762\u306e\u5782\u76f4\u6297\u529b\u306e\u516c\u5f0f\" class=\"wp-image-4232\" width=\"269\" height=\"92\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/formule-de-la-force-normale-dans-un-plan-incline-300x102.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/formule-de-la-force-normale-dans-un-plan-incline.png 576w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Fuerza-normal-y-fuerza-de-rozamiento\"><\/span>\u5782\u76f4\u6297\u529b\u3068\u6469\u64e6\u529b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5782\u76f4\u529b\u3068\u6469\u64e6\u529b\u306f\u6570\u5b66\u7684\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u305f 2 \u7a2e\u985e\u306e\u529b\u3067\u3042\u308b\u305f\u3081\u3001\u305d\u308c\u3089\u306e\u95a2\u4fc2\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u307e\u305a\u3001\u6469\u64e6\u529b\u3068\u306f\u4f55\u304b\u3092\u77e5\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u6469\u64e6\u529b\uff08\u307e\u305f\u306f\u6469\u64e6\u529b\uff09\u306f\u3001\u6ed1\u3089\u304b\u3067\u306a\u3044\u8868\u9762\u4e0a\u3067\u7269\u4f53\u3092\u52d5\u304b\u305d\u3046\u3068\u3059\u308b\u3068\u304d\u306b\u767a\u751f\u3059\u308b\u529b\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u6469\u64e6\u529b\u306f\u7269\u4f53\u306e\u52d5\u304d\u306b\u62b5\u6297\u3059\u308b\u529b\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u6469\u64e6\u529b\u306f\u5782\u76f4\u6297\u529b\u304b\u3089\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\u3088\u308a\u6b63\u78ba\u306b\u306f\u3001<strong>\u6469\u64e6\u529b\u306f\u8868\u9762\u6469\u64e6\u4fc2\u6570\u306b\u5782\u76f4\u6297\u529b\u3092\u4e57\u3058\u305f\u3082\u306e\u306b\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002<\/strong><\/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-b8e2dc6a1180d664163aeb969b289073_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_R=\\mu \\cdot N\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"86\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:5px\">\u91d1\uff1a <\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:8px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-5b005ac29604de5f2904d2da7ade0238_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_R\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"22\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u306f\u6469\u64e6\u529b\u3067\u3059\u3002 <\/span><\/li>\n<li style=\"margin-bottom:8px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-05d9eae892416bd34247a25207f8b718_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\mu\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"11\" style=\"vertical-align: -4px;\"><\/p>\n<p>\u306f\u6469\u64e6\u4fc2\u6570\u3067\u3059\u3002<\/span><\/li>\n<li><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-7354bae77b50b7d1faed3e8ea7a3511a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"N\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"16\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u901a\u5e38\u306e\u62b5\u6297\u3067\u3059\u3002 <\/span><\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejercicios-resueltos-de-la-fuerza-normal\"><\/span>\u901a\u5e38\u306e\u7b4b\u529b\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\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>\u4f53\u91cd5kg\u306e\u7269\u4f53\u304c\u5e73\u3089\u306a\u5730\u9762\u306b\u9759\u6b62\u3057\u3066\u3044\u307e\u3059\u3002\u6b21\u306b\u3001\u6700\u521d\u306e\u7269\u4f53\u306e\u4e0a\u306b\u8cea\u91cf 3 kg \u306e\u5225\u306e\u7269\u4f53\u304c\u8ffd\u52a0\u3055\u308c\u305f\u5834\u5408\u30012 \u3064\u306e\u7269\u4f53\u3092\u652f\u3048\u308b\u305f\u3081\u306b\u5730\u9762\u306b\u3088\u3063\u3066\u52a0\u3048\u3089\u308c\u308b\u5782\u76f4\u6297\u529b\u306f\u3044\u304f\u3089\u306b\u306a\u308a\u307e\u3059\u304b?\u30c7\u30fc\u30bf: g=9.81 m\/ <sup>s2<\/sup> \u3002 <\/p>\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\">\u5730\u9762\u306f\u4e21\u65b9\u306e\u7269\u4f53\u3092\u652f\u3048\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001\u5782\u76f4\u6297\u529b\u306f\u5404\u7269\u4f53\u306e\u91cd\u91cf\u306e\u529b\u306e\u5408\u8a08\u306b\u306a\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u307e\u305a\u5404\u30dc\u30c7\u30a3\u306e\u91cd\u91cf\u3092\u8a08\u7b97\u3057\u3001\u305d\u308c\u3089\u3092\u5408\u8a08\u3057\u307e\u3059\u3002<\/p>\n<p class=\"has-text-align-left\">\u91cd\u308a\u306e\u529b\u306f\u3001\u4f53\u306e\u8cea\u91cf\u306b\u91cd\u529b\u3092\u639b\u3051\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-c0cdb663ec9f8fe79fbecd960b50fc39_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=m\\cdot g\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"75\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u3057\u305f\u304c\u3063\u3066\u30015 kg \u306e\u4f53\u306e\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-a15ef1db0a6608fa8e6165ac0e12e925_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P_1=5\\cdot 9.81=49.05\\N\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"160\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u6b21\u306b\u3001\u8cea\u91cf\u304c 3 kg \u306e 2 \u756a\u76ee\u306e\u7269\u4f53\u306e\u91cd\u91cf\u3092\u6c7a\u5b9a\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-d57016899db324fc0f785e92341e9f2f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P_2=3\\cdot 9.81=29.43\\N\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"161\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u3057\u305f\u304c\u3063\u3066\u3001\u5782\u76f4\u30d0\u30e9\u30f3\u30b9\u6761\u4ef6\u3092\u9069\u7528\u3059\u308b\u3068\u3001\u5782\u76f4\u6297\u529b\u306f 2 \u3064\u306e\u91cd\u91cf\u306e\u5408\u8a08\u306b\u7b49\u3057\u3044\u3053\u3068\u304c\u308f\u304b\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-c65761c8213d33892f422dd6b0a29121_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle\\sum \\vv{F_y}=0\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"81\" style=\"vertical-align: -8px;\"><\/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-808b8980c7dbb5f2b1cdf14418fea88c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"N=P_1+P_2\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"99\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u7d50\u8ad6\u3068\u3057\u3066\u3001\u5730\u9762\u306b\u3088\u3063\u3066\u53ca\u307c\u3055\u308c\u308b\u5782\u76f4\u6297\u529b\u306e\u5024\u306f\u6b21\u306e\u3088\u3046\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-c5819ab4ff951b1edbe6efa0a0111243_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"N=49,05+29,43=78,48 \\ N\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"237\" 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 2<\/h3>\n<p>\u6b21\u306e\u56f3\u306b\u793a\u3059\u3088\u3046\u306b\u30012 \u3064\u306e\u7269\u4f53\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 m <sub>2<\/sub> =7 kg \u3067\u3001\u30e9\u30f3\u30d7\u306e\u50be\u659c\u304c 50\u00b0\u3067\u3042\u308b\u5834\u5408\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u304c\u5e73\u8861\u72b6\u614b\u306b\u306a\u308b\u3088\u3046\u306b\u3001\u8cea\u91cf m <sub>1<\/sub>\u306e\u7269\u4f53\u306b\u50be\u659c\u9762\u304b\u3089\u52a0\u308f\u308b\u5782\u76f4\u6297\u529b\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u904b\u52d5\u4e2d\u306f\u6469\u64e6\u529b\u3092\u7121\u8996\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <\/p>\n<figure class=\"wp-block-image 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 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-c05811c44aa2d58295c811d612a54eee_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P_{1x}=P_1\\cdot \\text{sin}(\\alpha)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"128\" 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\u3068\u304a\u308a\u3067\u3059\u3002 <\/p>\n<figure class=\"wp-block-image 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=\"\u4e26\u9032\u30d0\u30e9\u30f3\u30b9\u6f14\u7fd2\u304c\u89e3\u6c7a\u3055\u308c\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<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\u63d0\u6848\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-b62bbb21cbec2be0bba7f8a839b12ba9_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 ] Par cons\u00e9quent, la composante vectorielle du poids du corps 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=\"83\" width=\"1404\" 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-4e1b75b6ba5d7bbe88d23e014eb011c5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P_1\\cdot \\text{sin}(\\alpha)=P_2\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"120\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u524d\u306e\u5f0f\u304b\u3089\u3001\u7269\u4f53 1 \u306e\u8cea\u91cf\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-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-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-16ae359d38a8a11d1b1db4988b8eeaf1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"m_1 \\cdot \\text{sin}(50\\text{\u00ba}) =7\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"130\" 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-4249c6e274233595f50eedc1da64f56f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"m_1 =\\cfrac{7}{\\text{sin}(50\\text{\u00ba})}\" title=\"Rendered by QuickLaTeX.com\" height=\"44\" width=\"111\" 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-6e80f0daabb2167ec2f6622b08001a97_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"m_1=9,14 \\ kg\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"106\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u4e00\u65b9\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u529b\u306e\u56f3\u3092\u898b\u308b\u3068\u3001\u6cd5\u7dda\u529b\u306f\u50be\u659c\u9762\u306b\u5782\u76f4\u306a\u7269\u4f53 1 \u306e\u91cd\u91cf\u306e\u30d9\u30af\u30c8\u30eb\u6210\u5206\u306b\u7b49\u3057\u304f\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3053\u3068\u304c\u308f\u304b\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-82b47c80ab7ef66a41fc4d4425032831_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P_{1y}=N\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"66\" 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-56ad7b690b37b3f53ca20597e165860b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P_1\\cdot \\text{cos}(\\alpha)=N\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"120\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u3057\u305f\u304c\u3063\u3066\u3001\u3053\u306e\u65b9\u7a0b\u5f0f\u304b\u3089\u5782\u76f4\u6297\u529b\u306e\u5024\u3092\u6c42\u3081\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-f258dccd08d6573f74a2261b2192a92f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}N=P_1\\cdot \\text{cos}(\\alpha)\\\\[3ex]N=m_1 \\cdot g\\cdot \\text{cos}(\\alpha)\\\\[ 3ex]N=9,14 \\cdot 9,81 \\cdot \\text{cos}(50\\text{\u00ba})\\\\[3ex]N=\\bm{57,63 \\ 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 3<\/h3>\n<p> Nous pla\u00e7ons un corps de masse m=2 kg au sommet d&#8217;une rampe avec un angle d&#8217;inclinaison de 30\u00ba. Quel est le coefficient de frottement entre la rampe et le corps si celui-ci est maintenu en \u00e9quilibre ? Donn\u00e9es : g=9,81 m\/s <sup>2<\/sup> <\/p>\n<figure class=&quot;wp-block-image 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\/probleme-de-force-normale-et-de-force-de-friction.png&quot; alt=&quot;&quot; class=&quot;wp-image-4253&quot; width=&quot;285&quot; height=&quot;176&quot; srcset=&quot;https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-de-force-normale-et-de-force-de-friction-300x185.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-de-force-normale-et-de-force-de-friction.png 702w&quot; sizes=&quot;(max-width: 300px) 100vw, 300px&quot;><\/figure>\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> Comme dans tout probl\u00e8me de physique portant sur les forces, la premi\u00e8re chose \u00e0 faire est de dessiner le diagramme du corps libre du syst\u00e8me. Ainsi, toutes les forces qui agissent dans ce syst\u00e8me sont : <\/p>\n<figure class=&quot;wp-block-image 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-force-normale-et-friction-force.png&quot; alt=&quot;exercice r\u00e9solu de la force normale et de la force de frottement&quot; class=&quot;wp-image-4254&quot; width=&quot;285&quot; height=&quot;333&quot; srcset=&quot;https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-force-normale-et-friction-force-256x300.png 256w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-force-normale-et-friction-force.png 702w&quot; sizes=&quot;(max-width: 256px) 100vw, 256px&quot;><\/figure>\n<p> Ainsi, pour que le syst\u00e8me soit en \u00e9quilibre, la somme des forces sur les axes 1 et 2 doit \u00eatre \u00e9gale \u00e0 z\u00e9ro. Par cons\u00e9quent, les \u00e9quations suivantes sont vraies : [latex]F_R=P_1&#8243; title=&#8221;Rendered by QuickLaTeX.com&#8221; height=&#8221;454&#8243; width=&#8221;7014&#8243; style=&#8221;vertical-align: 0px;&#8221;><\/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-ea3f790cf878ca23f77405f73a20e7c6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"N=P_2\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"58\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u3053\u308c\u3067\u30012 \u756a\u76ee\u306e\u65b9\u7a0b\u5f0f\u304b\u3089\u5782\u76f4\u6297\u529b\u306e\u5024\u3092\u8a08\u7b97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\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-780db8c589b96d398e1400444a11db30_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}N=P_2\\\\[3ex]N=P\\cdot \\text{cos}(\\alpha)\\\\[3ex]N=m \\cdot g\\cdot \\text{cos }(\\alpha)\\\\[3ex]N=2 \\cdot 9,81 \\cdot \\text{cos}(30\\text{\u00ba})\\\\[3ex]N=16,99 \\ N\\end{array} \" title=\"Rendered by QuickLaTeX.com\" height=\"196\" width=\"171\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u4e00\u65b9\u3001\u6700\u521d\u306e\u5f0f\u3092\u4f7f\u7528\u3057\u3066\u6469\u64e6\u529b\u306e\u5024\u3092\u6c7a\u5b9a\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-bef5af0f3a7e907aa90f08435f538cf7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}F_R=P_1\\\\[3ex]N=P\\cdot \\text{sin}(\\alpha)\\\\[3ex]F_R=m \\cdot g\\cdot \\text{sin }(\\alpha)\\\\[3ex]F_R=2 \\cdot 9,81 \\cdot \\text{sin}(30\\text{\u00ba})\\\\[3ex]F_R=9,81 \\ N\\end{array} \" title=\"Rendered by QuickLaTeX.com\" height=\"196\" width=\"175\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u540c\u69d8\u306b\u3001\u6b21\u306e\u5f0f\u3092\u4f7f\u7528\u3057\u3066\u3001\u6469\u64e6\u529b\u3092\u5782\u76f4\u6297\u529b\u304a\u3088\u3073\u6469\u64e6\u4fc2\u6570\u306b\u95a2\u9023\u4ed8\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-b8e2dc6a1180d664163aeb969b289073_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_R=\\mu \\cdot N\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"86\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u305d\u3053\u3067\u3001\u65b9\u7a0b\u5f0f\u304b\u3089\u6469\u64e6\u4fc2\u6570\u3092\u524a\u9664\u3057\u3001\u305d\u306e\u5024\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-2bee3710c7506bf8ff2456662a57f279_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\mu=\\cfrac{F_R}{N}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"59\" 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-69da73a9c8ca8ef047563bcb0b957d4b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\mu=\\cfrac{9,81}{16,99}\" title=\"Rendered by QuickLaTeX.com\" height=\"42\" width=\"80\" style=\"vertical-align: -16px;\"><\/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-87da99c1b6541f3ad374e4ebb3e9daf1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{\\mu=0.58}\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"66\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u5782\u76f4\u6297\u529b\u3068\u306f\u4f55\u304b\u3001\u304a\u3088\u3073\u554f\u984c\u306e\u7a2e\u985e\u306b\u5fdc\u3058\u3066\u305d\u308c\u3092\u6c7a\u5b9a\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u5782\u76f4\u529b\u306e\u7279\u5fb4\u3092\u7406\u89e3\u3057\u3001\u3055\u3089\u306b\u3001\u6bb5\u968e\u7684\u306b\u89e3\u6c7a\u3055\u308c\u308b\u6f14\u7fd2\u3067\u3053\u306e\u30bf\u30a4\u30d7\u306e\u529b\u3092\u7df4\u7fd2\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 \u5782\u76f4\u6297\u529b\u3068\u306f\u4f55\u3067 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/physigeek.com\/ja\/%e9%80%9a%e5%b8%b8%e3%81%ae%e5%8a%9b\/\"> <span class=\"screen-reader-text\">\u901a\u5e38\u306e\u5f37\u5ea6<\/span> \u3082\u3063\u3068\u8aad\u3080 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