{"id":298,"date":"2023-06-22T07:14:12","date_gmt":"2023-06-22T07:14:12","guid":{"rendered":"https:\/\/physigeek.com\/cn\/%e6%9d%a0%e6%9d%86%e5%ae%9a%e5%be%8b\/"},"modified":"2023-06-22T07:14:12","modified_gmt":"2023-06-22T07:14:12","slug":"%e6%9d%a0%e6%9d%86%e5%ae%9a%e5%be%8b","status":"publish","type":"post","link":"https:\/\/physigeek.com\/cn\/%e6%9d%a0%e6%9d%86%e5%ae%9a%e5%be%8b\/","title":{"rendered":"\u6760\u6746\u5b9a\u5f8b"},"content":{"rendered":"<p>\u5728\u672c\u6587\u4e2d\uff0c\u60a8\u5c06\u4e86\u89e3\u4ec0\u4e48\u662f\u6760\u6746\u5b9a\u5f8b\u3002\u6211\u4eec\u8fd8\u5411\u60a8\u5c55\u793a\u4e86\u4e00\u4e2a\u4f8b\u5b50\uff0c\u89e3\u91ca\u6760\u6746\u5b9a\u5f8b\u5982\u4f55\u5f71\u54cd\u4f5c\u7528\u5728\u5176\u4e0a\u7684\u529b\u3002\u6b64\u5916\uff0c\u4f60\u8fd8\u53ef\u4ee5\u901a\u8fc7\u5206\u6b65\u7ec3\u4e60\u6765\u7ec3\u4e60\u6760\u6746\u5b9a\u5f8b\u3002<\/p>\n<p>\u4ece\u903b\u8f91\u4e0a\u8bb2\uff0c\u5728\u4e86\u89e3\u6760\u6746\u5b9a\u5f8b\u7684\u7ec4\u6210\u4e4b\u524d\uff0c\u6211\u4eec\u5fc5\u987b\u975e\u5e38\u6e05\u695a\u6760\u6746\u662f\u4ec0\u4e48\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u6211\u4eec\u5efa\u8bae\u60a8\u5728\u7ee7\u7eed\u89e3\u91ca\u4e4b\u524d\u5148\u8bbf\u95ee\u4ee5\u4e0b\u5e16\u5b50\uff1a <\/p>\n<div style=\"background-color:#FFFDE7; padding-top: 10px; padding-bottom: 10px; padding-right: 10px; padding-left: 20px; border: 2.5px dashed #FFB74D; border-radius:20px;\"> <span style=\"color:#ff951b\">\u27a4<\/span><strong>\u8bf7\u53c2\u9605\uff1a<\/strong><a href=\"https:\/\/physigeek.com\/cn\/\u6760\u6746\/\">\u4ec0\u4e48\u662f\u6760\u6746\uff1f<\/a> <\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue-es-la-ley-de-la-palanca\"><\/span>\u4ec0\u4e48\u662f\u6760\u6746\u5b9a\u5f8b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u6760\u6746\u5b9a\u5f8b<\/strong>\u662f\u4e0e\u4f5c\u7528\u5728\u6760\u6746\u4e0a\u7684\u4e0d\u540c\u529b\u76f8\u5173\u7684\u5b9a\u5f8b\u3002\u56e0\u6b64\uff0c\u5229\u7528\u6760\u6746\u5b9a\u5f8b\u6765\u89e3\u51b3\u6d89\u53ca\u6760\u6746\u7684\u95ee\u9898\u3002<\/p>\n<p>\u66f4\u5177\u4f53\u5730\u8bf4\uff0c\u6760\u6746\u5b9a\u5f8b\u6307\u51fa\uff0c\u529f\u7387\u4e58\u4ee5\u624b\u81c2\u957f\u5ea6\u7684\u4e58\u79ef\u7b49\u4e8e\u963b\u529b\u4e58\u4ee5\u624b\u81c2\u957f\u5ea6\u7684\u4e58\u79ef\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u6760\u6746\u5b9a\u5f8b\u4f7f\u6211\u4eec\u80fd\u591f\u5728\u6570\u5b66\u4e0a\u5c06\u963b\u529b\uff08\u8d1f\u8f7d\u65bd\u52a0\u5728\u6760\u6746\u4e0a\u7684\u529b\uff09\u4e0e\u529f\u7387\uff08\u514b\u670d\u8d1f\u8f7d\u5fc5\u987b\u65bd\u52a0\u7684\u529b\uff09\u8054\u7cfb\u8d77\u6765\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Formula-de-la-ley-de-la-palanca\"><\/span>\u6760\u6746\u5b9a\u5f8b\u516c\u5f0f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u6760\u6746\u5b9a\u5f8b\u516c\u5f0f<\/strong>\u5728\u6570\u5b66\u4e0a\u5c06\u529f\u7387\u4e0e\u6760\u6746\u7684\u963b\u529b\u8054\u7cfb\u8d77\u6765\u3002\u66f4\u5177\u4f53\u5730\u8bf4\uff0c\u6760\u6746\u5b9a\u5f8b\u6307\u51fa\uff0c\u529f\u7387\u4e58\u4ee5\u52a8\u529b\u81c2\u7b49\u4e8e\u963b\u529b\u4e58\u4ee5\u963b\u529b\u81c2\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\/loi-du-levier.png\" alt=\"\u6760\u6746\u5b9a\u5f8b\u7684\u516c\u5f0f\" class=\"wp-image-5155\" width=\"338\" height=\"339\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/loi-du-levier-300x300.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/loi-du-levier-150x150.png 150w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/loi-du-levier-768x770.png 768w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/loi-du-levier.png 779w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<p style=\"margin-bottom:6px\">\u91d1\u5b50\uff1a<\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:12px\"><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:12px\"><span style=\"color:#101010;font-weight: normal;\"><strong>\u4f5c\u7528\u529b\u6216\u529f\u7387 (P)<\/strong> \uff1a\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:12px\"><span style=\"color:#101010;font-weight: normal;\"><strong>\u8d1f\u8f7d\u6216\u963b\u529b (R)<\/strong> \uff1a\u662f\u5fc5\u987b\u514b\u670d\u7684\u529b\u3002<\/span><\/li>\n<li style=\"margin-bottom:12px\"><span style=\"color:#101010;font-weight: normal;\"><strong>\u52a8\u529b\u81c2\uff08BP\uff09<\/strong> \uff1a\u8fd9\u662f\u52a8\u529b\u548c\u652f\u70b9\u4e4b\u95f4\u7684\u8ddd\u79bb\u3002<\/span><\/li>\n<li style=\"margin-bottom:12px\"><span style=\"color:#101010;font-weight: normal;\"><strong>\u963b\u529b\u81c2 (BR)<\/strong> \uff1a\u8fd9\u662f\u963b\u529b\u70b9\u548c\u652f\u6491\u70b9\u4e4b\u95f4\u7684\u8ddd\u79bb\u3002<\/span><\/li>\n<\/ul>\n<p>\u8bf7\u6ce8\u610f\uff0c\u6760\u6746\u5b9a\u5f8b\u4ec5\u5728\u6760\u6746\u5904\u4e8e\u5e73\u8861\u72b6\u6001\uff08\u5373\u9759\u6b62\u72b6\u6001\uff09\u65f6\u624d\u6210\u7acb\u3002\u56e0\u6b64\uff0c\u5982\u679c\u6760\u6746\u79fb\u52a8\uff0c\u6760\u6746\u65b9\u7a0b\u5c31\u4e0d\u6210\u7acb\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejemplo-de-la-ley-de-la-palanca\"><\/span>\u6760\u6746\u5b9a\u5f8b\u793a\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u4f8b\u5982\uff0c\u5728\u672c\u8282\u4e2d\uff0c\u6211\u4eec\u5c06\u770b\u5230\u62b5\u6d88\u963b\u529b\u6240\u5fc5\u987b\u65bd\u52a0\u7684\u529b\u503c\u5982\u4f55\u6839\u636e\u6760\u6746\u81c2\u7684\u957f\u5ea6\u800c\u53d8\u5316\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u6765\u770b\u770b\u5f53\u652f\u70b9\u4f4d\u4e8e\u529b\u548c\u963b\u529b\u4e2d\u95f4\u65f6\u4f1a\u53d1\u751f\u4ec0\u4e48\uff1a <\/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\/loi-du-levier-exemple-1.png\" alt=\"\u6760\u6746\u5b9a\u5f8b\u793a\u4f8b1\" class=\"wp-image-5161\" width=\"299\" height=\"214\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/loi-du-levier-exemple-1-300x215.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/loi-du-levier-exemple-1.png 645w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<p>\u6211\u4eec\u5e94\u7528\u6760\u6746\u5b9a\u5f8b\u7684\u516c\u5f0f\u6765\u8ba1\u7b97\u529b\u91cf\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-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-02893e0ec4e3c945bb8d92c039e90c2b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=\\cfrac{R\\cdot BR}{BP}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"94\" 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-2b51a9318ca7df21c0442670c1bed97c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=\\cfrac{100\\cdot 150}{150}\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"106\" 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-a7d0ccc28cd273b8c44cc50c05f79ffa_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=100 \\ N\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"86\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u56e0\u6b64\uff0c\u5982\u679c\u652f\u70b9\u6070\u597d\u4f4d\u4e8e\u529b\u548c\u963b\u529b\u4e4b\u95f4\u7684\u4e2d\u95f4\uff0c\u5219\u5fc5\u987b\u65bd\u52a0\u5728\u6760\u6746\u4e0a\u7684\u529b\u7b49\u4e8e\u963b\u529b\u3002<\/p>\n<p>\u5176\u6b21\uff0c\u6211\u4eec\u5c06\u5206\u6790\u652f\u6491\u70b9\u66f4\u63a5\u8fd1\u963b\u529b\u800c\u4e0d\u662f\u5e42\u7684\u60c5\u51b5\uff1a <\/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\/loi-du-levier-exemple-2.png\" alt=\"\u6760\u6746\u5b9a\u5f8b\u793a\u4f8b2\" class=\"wp-image-5163\" width=\"300\" height=\"218\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/loi-du-levier-exemple-2-300x217.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/loi-du-levier-exemple-2.png 645w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\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-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-02893e0ec4e3c945bb8d92c039e90c2b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=\\cfrac{R\\cdot BR}{BP}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"94\" 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-a96415ed0eee3185bb4337121a191f99_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=\\cfrac{100\\cdot 100}{200}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"106\" 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-325fa07f0a03db4a489592b7fbd47ebc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=50 \\N\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"55\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u6240\u4ee5\u5f53\u529f\u7387\u81c2\u957f\u4e8e\u963b\u529b\u81c2\u65f6\uff0c\u529f\u7387\u503c\u5c0f\u4e8e\u7535\u963b\u503c\u3002<\/p>\n<p>\u6700\u540e\uff0c\u6211\u4eec\u7814\u7a76\u652f\u6491\u70b9\u66f4\u63a5\u8fd1\u529f\u7387\u70b9\u800c\u4e0d\u662f\u963b\u529b\u70b9\u7684\u60c5\u51b5\uff1a <\/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\/loi-du-levier-exemple-3.png\" alt=\"\u6760\u6746\u5b9a\u5f8b3\u7684\u4f8b\u5b50\" class=\"wp-image-5164\" width=\"300\" height=\"216\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/loi-du-levier-exemple-3-300x216.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/loi-du-levier-exemple-3.png 643w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\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-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-02893e0ec4e3c945bb8d92c039e90c2b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=\\cfrac{R\\cdot BR}{BP}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"94\" 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-6bbe95110f0a90fc6e0442006b5720ad_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=\\cfrac{100\\cdot 220}{80}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"106\" 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-64eb7e33f3c6378d745a24b65c75f3b8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=275 \\ N\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"86\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u603b\u4e4b\uff0c\u5f53\u652f\u70b9\u8ddd\u79bb\u529b\u6bd4\u8ddd\u79bb\u963b\u529b\u66f4\u8fd1\u65f6\uff0c\u5fc5\u987b\u65bd\u52a0\u5927\u4e8e\u963b\u529b\u7684\u529b\u6765\u5e73\u8861\u5929\u5e73\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejercicios-resueltos-de-la-ley-de-la-palanca\"><\/span>\u89e3\u51b3\u4e86\u6760\u6746\u5b9a\u5f8b\u7684\u7ec3\u4e60<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u5728\u505a\u7ec3\u4e60\u4e4b\u524d\uff0c\u6211\u4eec\u5efa\u8bae\u60a8\u8bbf\u95ee\u4ee5\u4e0b\u94fe\u63a5\uff0c\u5176\u4e2d\u6211\u4eec\u89e3\u91ca\u4e86\u4e0d\u540c\u7c7b\u578b\u7684\u6760\u6746\uff0c\u56e0\u4e3a\u6bcf\u79cd\u7c7b\u578b\u7684\u6760\u6746\u90fd\u6709\u4e00\u4e2a\u7ec3\u4e60\uff0c\u60a8\u5fc5\u987b\u6e05\u695a\u6bcf\u79cd\u7c7b\u578b\u662f\u4ec0\u4e48\u624d\u80fd\u89e3\u51b3\u95ee\u9898\u3002 \u3002 <\/p>\n<div style=\"background-color:#FFFDE7; padding-top: 10px; padding-bottom: 10px; padding-right: 10px; padding-left: 20px; border: 2.5px dashed #FFB74D; border-radius:20px;\"> <span style=\"color:#ff951b\">\u27a4<\/span><strong>\u8bf7\u53c2\u9605\uff1a<\/strong><a href=\"https:\/\/physigeek.com\/cn\/\u6760\u6746\u7c7b\u578b\/\">\u6760\u6746\u7c7b\u578b<\/a><\/div>\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\"> \u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u5e94\u7528\u6760\u6746\u6cd5\u5219\u6765\u786e\u5b9a\u5e42\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\u7684\u7269\u4f53\uff0c\u8ddd\u652f\u6491\u70b9 50 \u5398\u7c73\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\u9700\u8981\u786e\u5b9a\u52a8\u529b\u81c2\u3002\u56e0\u6b64\uff0c\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u9700\u8981\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>\u5728\u672c\u6587\u4e2d\uff0c\u60a8\u5c06\u4e86\u89e3\u4ec0\u4e48\u662f\u6760\u6746\u5b9a\u5f8b\u3002\u6211\u4eec\u8fd8\u5411\u60a8\u5c55\u793a\u4e86\u4e00\u4e2a\u4f8b\u5b50\uff0c\u89e3\u91ca\u6760\u6746\u5b9a\u5f8b\u5982\u4f55\u5f71\u54cd\u4f5c\u7528\u5728\u5176\u4e0a\u7684\u529b\u3002\u6b64\u5916\uff0c\u4f60\u8fd8\u53ef\u4ee5 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/physigeek.com\/cn\/%e6%9d%a0%e6%9d%86%e5%ae%9a%e5%be%8b\/\"> <span class=\"screen-reader-text\">\u6760\u6746\u5b9a\u5f8b<\/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-298","post","type-post","status-publish","format-standard","hentry","category-5"],"yoast_head":"<!-- This site is optimized 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