{"id":293,"date":"2023-06-22T09:55:32","date_gmt":"2023-06-22T09:55:32","guid":{"rendered":"https:\/\/physigeek.com\/cn\/%e6%9d%a0%e6%9d%86\/"},"modified":"2023-06-22T09:55:32","modified_gmt":"2023-06-22T09:55:32","slug":"%e6%9d%a0%e6%9d%86","status":"publish","type":"post","link":"https:\/\/physigeek.com\/cn\/%e6%9d%a0%e6%9d%86\/","title":{"rendered":"\u4e3e\u8d77"},"content":{"rendered":"<p>\u672c\u6587\u89e3\u91ca\u4e86\u4ec0\u4e48\u662f\u6760\u6746\u3002\u56e0\u6b64\uff0c\u60a8\u5c06\u4e86\u89e3\u6760\u6746\u5728\u7269\u7406\u5b66\u4e2d\u7684\u7ec4\u6210\u3001\u4e0d\u540c\u7c7b\u578b\u7684\u6760\u6746\u4ee5\u53ca\u89e3\u51b3\u6760\u6746\u95ee\u9898\u7684\u516c\u5f0f\u3002\u6b64\u5916\uff0c\u60a8\u8fd8\u53ef\u4ee5\u901a\u8fc7\u9010\u6b65\u89e3\u51b3\u7684\u6760\u6746\u7ec3\u4e60\u6765\u7ec3\u4e60\u7406\u8bba\u3002<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue-es-una-palanca\"><\/span> \u4ec0\u4e48\u662f\u7535\u68af\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u6760\u6746<\/strong>\u662f\u4e00\u79cd\u4f20\u9012\u529b\u548c\u8fd0\u52a8\u7684\u7b80\u5355\u673a\u5668\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u6760\u6746\u662f\u4e00\u79cd\u673a\u68b0\u88c5\u7f6e\uff0c\u7528\u4e8e\u589e\u52a0\u65bd\u52a0\u5230\u7269\u4f53\u4e0a\u7684\u529b\u3001\u7269\u4f53\u7684\u901f\u5ea6\u6216\u884c\u8fdb\u7684\u8ddd\u79bb\u3002<\/p>\n<p>\u4e00\u822c\u6765\u8bf4\uff0c\u6760\u6746\u7531\u4e00\u6839\u53ef\u4ee5\u7ed5\u652f\u70b9\uff08\u79f0\u4e3a\u652f\u70b9\uff09\u65cb\u8f6c\u7684\u521a\u6027\u6746\u7ec4\u6210\u3002<\/p>\n<p>\u6760\u6746\u975e\u5e38\u53e4\u8001\uff0c\u5b9e\u9645\u4e0a\u88ab\u8ba4\u4e3a\u662f\u5728\u53f2\u524d\u65f6\u4ee3\u53d1\u660e\u7684\u3002\u4e8b\u5b9e\u4e0a\uff0c\u6760\u6746\u673a\u6784\u5236\u4f5c\u8d77\u6765\u975e\u5e38\u7b80\u5355\uff0c\u800c\u4e14\u975e\u5e38\u6709\u7528\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u8ba9\u60a8\u5927\u5927\u589e\u52a0\u65bd\u52a0\u5728\u7269\u4f53\u4e0a\u7684\u529b\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Caracteristicas-de-las-palancas\"><\/span>\u6760\u6746\u7279\u70b9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u7ed9\u51fa\u4e86\u6760\u6746\u7684\u5b9a\u4e49\uff0c\u8ba9\u6211\u4eec\u770b\u770b\u8fd9\u79cd\u7b80\u5355\u673a\u5668\u7684\u4e0d\u540c\u90e8\u5206\u662f\u4ec0\u4e48\uff1a<\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:14px\"><span style=\"color:#101010;font-weight: normal;\"><strong>\u652f\u6491\u70b9\u6216\u652f\u70b9 (F)<\/strong> \uff1a\u8fd9\u662f\u6760\u6746\u4e0a\u4fdd\u6301\u7684\u90e8\u5206\u3002\u56e0\u6b64\uff0c\u5b83\u652f\u6491\u7740\u6760\u94c3\u6746\u53ca\u5176\u4e0a\u65b9\u8eab\u4f53\u7684\u5168\u90e8\u91cd\u91cf\u3002<\/span><\/li>\n<li style=\"margin-bottom:14px\"><span style=\"color:#101010;font-weight: normal;\"><strong>\u4f5c\u7528\u529b\u6216\u529f\u7387 (P)<\/strong> \uff1a\u8fd9\u662f\u65bd\u52a0\u5230\u6760\u6746\u4e0a\u4ee5\u62b5\u6d88\u53e6\u4e00\u4fa7\u8d1f\u8f7d\u7684\u529b\u3002<\/span><\/li>\n<li style=\"margin-bottom:14px\"><span style=\"color:#101010;font-weight: normal;\"><strong>\u7535\u8377\u6216\u963b\u529b (R)<\/strong> \uff1a\u8fd9\u662f\u5fc5\u987b\u514b\u670d\u7684\u529b\u3002<\/span><\/li>\n<li style=\"margin-bottom:14px\"><span style=\"color:#101010;font-weight: normal;\"><strong>\u52a8\u529b\u81c2\uff08BP\uff09<\/strong> \uff1a\u8fd9\u662f\u52a8\u529b\u4e0e\u652f\u70b9\u4e4b\u95f4\u7684\u8ddd\u79bb\u3002<\/span><\/li>\n<li style=\"margin-bottom:14px\"><span style=\"color:#101010;font-weight: normal;\"><strong>\u963b\u529b\u81c2\uff08BR\uff09<\/strong> \uff1a\u662f\u963b\u529b\u4e0e\u652f\u70b9\u4e4b\u95f4\u7684\u8ddd\u79bb\u3002<\/span> <\/li>\n<\/ul>\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\/parties-dun-levier-de-premiere-qualite.png\" alt=\"\u6760\u6746\u7684\u7279\u70b9\" class=\"wp-image-4733\" width=\"342\" height=\"255\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/parties-dun-levier-de-premiere-qualite-300x224.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/parties-dun-levier-de-premiere-qualite.png 606w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ley-de-la-palanca\"><\/span>\u6760\u6746\u5b9a\u5f8b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u4e3a\u4e86\u4f7f\u4e00\u7ea7\u6760\u6746\u4fdd\u6301\u5e73\u8861\uff0c\u5fc5\u987b\u6ee1\u8db3\u4ee5\u4e0b\u65b9\u7a0b\uff1a\u529f\u7387\u4e58\u4ee5\u52a8\u529b\u81c2\u7b49\u4e8e\u963b\u529b\u4e58\u4ee5\u963b\u529b\u81c2\u3002<\/p>\n<p>\u56e0\u6b64\uff0c<strong>\u6760\u6746\u5b9a\u5f8b\u7684\u516c\u5f0f<\/strong>\u5982\u4e0b\uff1a<\/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-f6834df9d4ef006d7a868d9f1df7af56_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P\\cdot BP=R\\cdot BR\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"133\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:5px\">\u91d1\u5b50\uff1a <\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:5px\"><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-fda1e51b12ba3624074fcbebad72b1fc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"14\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u662f\u529b\u91cf\uff08\u6216\u52aa\u529b\uff09\u3002 <\/span><\/li>\n<li style=\"margin-bottom:5px\"><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-fc8acbc9d0331ce1b64fef220d307f4a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"BP\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"28\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u662f\u6743\u529b\u7684\u6b66\u5668\u3002 <\/span><\/li>\n<li style=\"margin-bottom:5px\"><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-d6abdd487c56e5efbb2c9522ed4b9360_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"R\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"14\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u662f\u7535\u963b\uff08\u6216\u8d1f\u8f7d\uff09\u3002 <\/span><\/li>\n<li style=\"margin-bottom:5px\"><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-47cb9c1f3d49c4064a8ea053f28ba5f8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"BR\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"28\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u662f\u62b5\u6297\u7684\u624b\u81c2\u3002<\/span><\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tipos-de-palancas\"><\/span> \u6760\u6746\u7c7b\u578b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u6839\u636e\u529b\u3001\u963b\u529b\u548c\u652f\u70b9\u7684\u76f8\u5bf9\u4f4d\u7f6e\uff0c\u6760\u6746\u5206\u4e3a\u4e09\u79cd\u7c7b\u578b\u3002\u56e0\u6b64\uff0c\u4e0b\u9762\u5bf9\u6bcf\u79cd\u7c7b\u578b\u7684\u6760\u6746\u8fdb\u884c\u89e3\u91ca\u3002<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Palanca-de-primer-grado\"><\/span> \u6ea2\u4ef7\u6760\u6746<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u4e00\u7ea7\u6760\u6746<\/strong>\uff0c\u4e5f\u79f0\u4e3a<strong>\u4e00\u7c7b\u6760\u6746<\/strong>\uff0c\u662f\u6307\u4e24\u7aef\u5404\u6709\u4e00\u4e2a\u91cd\u7269\u4e14\u5728\u4e2d\u95f4\u4f4d\u7f6e\u4e3a\u652f\u70b9\u7684\u6760\u6746\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u4e00\u7ea7\u6760\u6746\u7684\u4e3b\u8981\u7279\u70b9\u662f\u5728\u4f5c\u7528\u529b\uff08\u6216\u529f\u7387\uff09\u548c\u8d1f\u8f7d\uff08\u6216\u963b\u529b\uff09\u4e4b\u95f4\u5177\u6709\u652f\u70b9\uff08\u6216\u652f\u70b9\uff09\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u6447\u81c2\u3001\u526a\u5200\u3001\u94b3\u5b50\u6216\u94b3\u5b50\u90fd\u662f\u4e3b\u6760\u6746\u3002\u5f53\u6211\u4eec\u5c1d\u8bd5\u4e3e\u8d77\u91cd\u7269\u65f6\uff0c\u751a\u81f3\u4eba\u4f53\u4e5f\u53ef\u4ee5\u5145\u5f53\u4e00\u7ea7\u6760\u6746\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u53ef\u4ee5\u5206\u6790\u4e09\u79cd\u4e0d\u540c\u7c7b\u522b\u7684\u4e00\u7ea7\u6760\u6746\uff1a<\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:18px\"><span style=\"color:#101010;font-weight: normal;\"><strong>\u652f\u70b9\u5c45\u4e2d\u7684\u4e00\u7ea7\u6760\u6746<\/strong>\uff1a\u652f\u70b9\u4f4d\u4e8e\u6760\u6746\u7684\u6b63\u4e2d\u95f4\uff0c\u5373\u652f\u70b9\u5230\u529b\u70b9\u7684\u8ddd\u79bb\u4e0e\u5230\u963b\u529b\u70b9\u7684\u8ddd\u79bb\u76f8\u540c\u3002<\/span><\/li>\n<li style=\"margin-bottom:18px\"><span style=\"color:#101010;font-weight: normal;\"><strong>\u652f\u6491\u70b9\u63a5\u8fd1\u963b\u529b\u7684\u4e00\u7ea7\u6760\u6746<\/strong>\uff1a\u652f\u6491\u70b9\u8ddd\u79bb\u963b\u529b\u6bd4\u79bb\u52a8\u529b\u66f4\u8fd1\u3002\u56e0\u6b64\u529f\u7387\u81c2\u6bd4\u963b\u529b\u81c2\u957f\uff0c\u56e0\u6b64\u529f\u7387\u6bd4\u963b\u529b\u5c0f\u3002<\/span><\/li>\n<li style=\"margin-bottom:18px\"><span style=\"color:#101010;font-weight: normal;\"><strong>\u652f\u70b9\u63a5\u8fd1\u52a8\u529b\u7684\u4e00\u7ea7\u6760\u6746<\/strong>\uff1a\u652f\u70b9\u66f4\u63a5\u8fd1\u52a8\u529b\u800c\u4e0d\u662f\u963b\u529b\u3002\u56e0\u6b64\u963b\u529b\u81c2\u6bd4\u52a8\u529b\u81c2\u957f\uff0c\u56e0\u6b64\u529f\u7387\u5927\u4e8e\u963b\u529b\u3002<\/span> <\/li>\n<\/ul>\n<div class=\"wp-block-columns is-layout-flex wp-container-4 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\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\/levier-de-premier-degre-a-point-dappui-centre.png\" alt=\"\u652f\u70b9\u4ee5\u4e00\u7ea7\u6760\u6746\u4e3a\u4e2d\u5fc3\" class=\"wp-image-4744\" width=\"250\" height=\"274\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/levier-de-premier-degre-a-point-dappui-centre-273x300.png 273w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/levier-de-premier-degre-a-point-dappui-centre.png 604w\" sizes=\"auto, (max-width: 273px) 100vw, 273px\"><\/figure>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\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\/point-dappui-du-levier-du-premier-degre-proche-de-la-resistance.png\" alt=\"\u7b2c\u4e00\u5ea6\u6760\u6746\u7684\u652f\u70b9\u9760\u8fd1\u963b\u529b\" class=\"wp-image-4746\" width=\"250\" height=\"276\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/point-dappui-du-levier-du-premier-degre-proche-de-la-resistance-271x300.png 271w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/point-dappui-du-levier-du-premier-degre-proche-de-la-resistance.png 606w\" sizes=\"auto, (max-width: 271px) 100vw, 271px\"><\/figure>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\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\/levier-dappui-de-premiere-qualite-proche-de-la-puissance.png\" alt=\"\u7b2c\u4e00\u5ea6\u6760\u6746\u7684\u652f\u70b9\u9760\u8fd1\u52a8\u529b\" class=\"wp-image-4747\" width=\"250\" height=\"276\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/levier-dappui-de-premiere-qualite-proche-de-la-puissance-271x300.png 271w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/levier-dappui-de-premiere-qualite-proche-de-la-puissance.png 606w\" sizes=\"auto, (max-width: 271px) 100vw, 271px\"><\/figure>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Palanca-de-segundo-grado\"><\/span>\u4e8c\u7ea7\u6760\u6746<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u4e8c\u7ea7\u6760\u6746<\/strong>\uff0c\u53c8\u79f0<strong>\u4e8c\u7ea7\u6760\u6746<\/strong>\uff0c\u662f\u4e00\u79cd\u8f7d\u8377\uff08\u6216\u963b\u529b\uff09\u4f4d\u4e8e\u652f\u70b9\uff08\u6216\u652f\u70b9\uff09\u4e0e\u4f5c\u7528\u529b\uff08\u6216\u529f\u7387\uff09\u4e4b\u95f4\u7684\u6760\u6746\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u4e8c\u5ea6\u6760\u6746\u7684\u652f\u70b9\u4f4d\u4e8e\u6760\u6746\u7684\u4e00\u7aef\uff0c\u800c\u5728\u53e6\u4e00\u7aef\u5fc5\u987b\u65bd\u52a0\u5782\u76f4\u5411\u4e0a\u7684\u529b\u6765\u63d0\u5347\u8d1f\u8f7d\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u72ec\u8f6e\u624b\u63a8\u8f66\u3001\u80e1\u6843\u5939\u5b50\u548c\u5f00\u74f6\u5668\u90fd\u662f\u4e8c\u7ea7\u6760\u6746\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\/caracteristiques-du-levier-du-deuxieme-degre.png\" alt=\"\u4e8c\u5ea6\u6760\u6746\u7684\u7279\u5f81\" class=\"wp-image-4933\" width=\"282\" height=\"354\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/caracteristiques-du-levier-du-deuxieme-degre-239x300.png 239w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/caracteristiques-du-levier-du-deuxieme-degre.png 558w\" sizes=\"auto, (max-width: 239px) 100vw, 239px\"><\/figure>\n<p>\u56e0\u6b64\uff0c\u5728\u4e8c\u7ea7\u6760\u6746\u4e2d\uff0c\u52a8\u529b\u81c2\u59cb\u7ec8\u5927\u4e8e\u963b\u529b\u81c2\u3002\u56e0\u6b64\uff0c\u5728\u4e8c\u7ea7\u6760\u6746\u4e2d\uff0c\u529b\u91cf\u603b\u662f\u5c0f\u4e8e\u963b\u529b\u3002<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Palanca-de-tercer-grado\"><\/span> \u4e09\u7ea7\u6760\u6746<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u4e09\u7ea7\u6760\u6746<\/strong>\u53c8\u79f0<strong>\u4e09\u7ea7\u6760\u6746<\/strong>\uff0c\u662f\u5728\u652f\u70b9\uff08\u6216\u652f\u70b9\uff09\u4e0e\u8d1f\u8f7d\uff08\u6216\u963b\u529b\uff09\u4e4b\u95f4\u65bd\u52a0\u4f5c\u7528\u529b\uff08\u6216\u529b\u91cf\uff09\u7684\u6760\u6746\u3002<\/p>\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u4e09\u5ea6\u6760\u6746\u7684\u4e00\u7aef\u662f\u652f\u70b9\uff0c\u53e6\u4e00\u7aef\u662f\u963b\u529b\uff0c\u529b\u4f4d\u4e8e\u6760\u6746\u4e24\u7aef\u4e4b\u95f4\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u9493\u9c7c\u7aff\u3001\u954a\u5b50\u548c\u6307\u7532\u5200\u90fd\u5c5e\u4e8e\u4e09\u7ea7\u6760\u6746\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\/caracteristiques-du-levier-de-troisieme-annee.png\" alt=\"\u4e09\u7ea7\u6760\u6746\u7684\u7279\u5f81\" class=\"wp-image-5009\" width=\"280\" height=\"377\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/caracteristiques-du-levier-de-troisieme-annee-223x300.png 223w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/caracteristiques-du-levier-de-troisieme-annee.png 525w\" sizes=\"auto, (max-width: 223px) 100vw, 223px\"><\/figure>\n<p>\u56e0\u6b64\uff0c\u7531\u4e8e\u963b\u529b\u603b\u662f\u6bd4\u52a8\u529b\u79bb\u652f\u70b9\u66f4\u8fdc\uff0c\u56e0\u6b64\u5728\u4e09\u5ea6\u6760\u6746\u4e2d\uff0c\u963b\u529b\u81c2\u603b\u662f\u5927\u4e8e\u52a8\u529b\u81c2\u3002\u56e0\u6b64\uff0c\u8981\u5b9e\u73b0\u7684\u529f\u7387\u4e5f\u5927\u4e8e\u7535\u963b\u3002<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejercicios-resueltos-de-palancas\"><\/span>\u89e3\u51b3\u4e86\u6760\u6746\u7ec3\u4e60<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 class=\"wp-block-heading\">\u7ec3\u4e601<\/h3>\n<p>\u5c06 50 \u516c\u65a4\u91cd\u7684\u8eab\u4f53\u653e\u7f6e\u5728\u7531 300 \u5398\u7c73\u521a\u6027\u6746\u5236\u6210\u7684\u4e00\u7ea7\u6760\u6746\u65c1\u8fb9\u3002\u5982\u679c\u8d1f\u8f7d\u548c\u652f\u70b9\u4e4b\u95f4\u7684\u8ddd\u79bb\u4e3a 180 \u5398\u7c73\uff0c\u5219\u653e\u7f6e\u5728\u6760\u6746\u53e6\u4e00\u4fa7\u7684\u8eab\u4f53\u5fc5\u987b\u6709\u591a\u5c11\u91cd\u91cf\u624d\u80fd\u4fdd\u6301\u5e73\u8861\uff1f <\/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>\u67e5\u770b\u89e3\u51b3\u65b9\u6848<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u8fd9\u4e2a\u95ee\u9898\u4e2d\u7684\u6760\u6746\u662f\u4e00\u7ea7\u6760\u6746\uff0c\u6211\u4eec\u53ea\u77e5\u9053\u963b\u529b\uff0850\u516c\u65a4\uff09\u548c\u963b\u529b\u81c2\uff08180\u5398\u7c73\uff09\u3002\u4f46\u662f\uff0c\u7531\u4e8e\u6211\u4eec\u77e5\u9053\u6746\u7684\u957f\u5ea6\uff0c\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u51cf\u53bb\u6746\u7684\u603b\u957f\u5ea6\u51cf\u53bb\u963b\u529b\u81c2\u7684\u957f\u5ea6\u6765\u8ba1\u7b97\u529f\u7387\u81c2\uff1a<\/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-d8009cd38409af0152df783ad89f3f36_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"BP=300-180=120 \\text{ cm}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"206\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u56e0\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5e94\u7528\u6760\u6746\u89c4\u5219\u6765\u786e\u5b9a\u529f\u7387\u7684\u503c\uff1a<\/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-f6834df9d4ef006d7a868d9f1df7af56_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P\\cdot BP=R\\cdot BR\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"133\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u6211\u4eec\u5c06\u6570\u636e\u4ee3\u5165\u516c\u5f0f\uff1a<\/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-5959be827849cceb2665451a56d8ff0a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P\\cdot 120=50\\cdot 180\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"134\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u6700\u540e\uff0c\u6211\u4eec\u6c42\u89e3\u65b9\u7a0b\u4e2d\u7684\u672a\u77e5\u6570\uff1a<\/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-78a4d183ce7fc344a8b0a34efc858751_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=\\cfrac{50\\cdot 180}{120}\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"97\" 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-7ace0a567aab127764f2007e8b8f0b3d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=75 \\text{ kg}\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"79\" 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\">\u7ec3\u4e602<\/h3>\n<p>\u6211\u4eec\u5728\u72ec\u8f6e\u8f66\u4e2d\u653e\u7f6e\u4e00\u4e2a\u91cd 70 \u516c\u65a4\u3001\u8ddd\u652f\u6491\u70b9 50 \u5398\u7c73\u7684\u7269\u4f53\u3002\u5982\u679c\u624b\u63a8\u8f66\u6240\u5728\u7684\u90e8\u5206\u8ddd\u652f\u70b9140\u5398\u7c73\uff0c\u6211\u4eec\u5fc5\u987b\u4ed8\u51fa\u591a\u5927\u7684\u529b\u624d\u80fd\u7528\u624b\u63a8\u8f66\u8fd0\u8f93\u7269\u4f53\uff1f <\/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>\u67e5\u770b\u89e3\u51b3\u65b9\u6848<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u72ec\u8f6e\u8f66\u662f\u4e8c\u7ea7\u6760\u6746\uff0c\u56e0\u4e3a\u963b\u529b\u4f4d\u4e8e\u652f\u70b9\u548c\u52a8\u529b\u4e4b\u95f4\u3002\u56e0\u6b64\uff0c\u8981\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u5fc5\u987b\u8fd0\u7528\u6760\u6746\u5b9a\u5f8b\uff1a<\/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-f6834df9d4ef006d7a868d9f1df7af56_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P\\cdot BP=R\\cdot BR\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"133\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u6211\u4eec\u5c06\u5df2\u77e5\u7684\u6570\u636e\u4ee3\u5165\u7b49\u5f0f\u4e2d\uff1a<\/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-e71aa135e71ce25f9237d661b3656cd7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P\\cdot 140=70\\cdot 50\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"125\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u6700\u540e\uff0c\u6211\u4eec\u6c42\u89e3\u65b9\u7a0b\u4e2d\u7684\u672a\u77e5\u6570\uff1a <\/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-05e2c7e509587e806745d16426497be4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=\\cfrac{70\\cdot 50}{140}\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"88\" 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-bda321058b63b34b706e280791fd6407_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=25 \\text{ kg}\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"79\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u56e0\u6b64\uff0c\u60a8\u5fc5\u987b\u4ed8\u51fa\u76f8\u5f53\u4e8e\u4e3e\u8d77 25 \u516c\u65a4\u7684\u529b\u91cf\u3002<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u7ec3\u4e603<\/h3>\n<p>\u5728\u4e09\u5ea6\u6760\u6746\u4e2d\uff0c\u5fc5\u987b\u65bd\u52a0\u76f8\u5f53\u4e8e 60 N \u7684\u529b\u6765\u62b5\u6d88\u8ddd\u652f\u70b9 80 cm \u5904 15 N \u7684\u963b\u529b\u3002\u8ba1\u7b97\u6240\u65bd\u52a0\u7684\u529f\u7387\u8ddd\u79bb\u652f\u70b9\u591a\u8fdc\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>\u67e5\u770b\u89e3\u51b3\u65b9\u6848<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u5728\u8fd9\u4e2a\u4e09\u7ea7\u6760\u6746\u95ee\u9898\u4e2d\uff0c\u6211\u4eec\u88ab\u8981\u6c42\u786e\u5b9a\u529b\u81c2\u3002\u56e0\u6b64\uff0c\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u5fc5\u987b\u5e94\u7528\u6760\u6746\u65b9\u7a0b\uff1a<\/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-f6834df9d4ef006d7a868d9f1df7af56_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P\\cdot BP=R\\cdot BR\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"133\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u6211\u4eec\u5c06\u5df2\u77e5\u7684\u6570\u636e\u4ee3\u5165\u7b49\u5f0f\u4e2d\uff1a<\/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-1dae5ba7078c412fbe57dd6d8fe0008f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"60\\cdot BP=15\\cdot 80\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"131\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u6211\u4eec\u6c42\u89e3\u65b9\u7a0b\u4e2d\u7684\u672a\u77e5\u6570\uff1a <\/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-6c20589172f022b76c17eb055f14ab91_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"BP=\\cfrac{15\\cdot 80}{60}\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"103\" 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-4b319952f3a57992cb5e4d229af26b5b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"BP=20 \\text{ cm}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"98\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u56e0\u6b64\uff0c\u5fc5\u987b\u5728\u8ddd\u79bb\u652f\u70b9 20 \u5398\u7c73\u5904\u65bd\u52a0\u52a8\u529b\u3002<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u89e3\u91ca\u4e86\u4ec0\u4e48\u662f\u6760\u6746\u3002\u56e0\u6b64\uff0c\u60a8\u5c06\u4e86\u89e3\u6760\u6746\u5728\u7269\u7406\u5b66\u4e2d\u7684\u7ec4\u6210\u3001\u4e0d\u540c\u7c7b\u578b\u7684\u6760\u6746\u4ee5\u53ca\u89e3\u51b3\u6760\u6746\u95ee\u9898\u7684\u516c\u5f0f\u3002\u6b64\u5916\uff0c\u60a8\u8fd8\u53ef\u4ee5 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/physigeek.com\/cn\/%e6%9d%a0%e6%9d%86\/\"> <span class=\"screen-reader-text\">\u4e3e\u8d77<\/span> \u67e5\u770b\u5168\u6587 &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","footnotes":""},"categories":[5],"tags":[],"class_list":["post-293","post","type-post","status-publish","format-standard","hentry","category-5"],"yoast_head":"<!-- This site is optimized 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