{"id":39,"date":"2023-06-26T23:01:22","date_gmt":"2023-06-26T23:01:22","guid":{"rendered":"https:\/\/physigeek.com\/cn\/%e7%89%9b%e9%a1%bf%e7%ac%ac%e4%b8%80%e5%ae%9a%e5%be%8b%e6%83%af%e6%80%a7%e5%ae%9a%e5%be%8b\/"},"modified":"2023-06-26T23:01:22","modified_gmt":"2023-06-26T23:01:22","slug":"%e7%89%9b%e9%a1%bf%e7%ac%ac%e4%b8%80%e5%ae%9a%e5%be%8b%e6%83%af%e6%80%a7%e5%ae%9a%e5%be%8b","status":"publish","type":"post","link":"https:\/\/physigeek.com\/cn\/%e7%89%9b%e9%a1%bf%e7%ac%ac%e4%b8%80%e5%ae%9a%e5%be%8b%e6%83%af%e6%80%a7%e5%ae%9a%e5%be%8b\/","title":{"rendered":"\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\uff08\u60ef\u6027\u5b9a\u5f8b\uff09"},"content":{"rendered":"<p>\u672c\u6587\u89e3\u91ca\u4e86\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\uff08\u4e5f\u79f0\u4e3a\u60ef\u6027\u5b9a\u5f8b\uff09\u7684\u5185\u5bb9\u3002\u9664\u4e86\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u7684\u9648\u8ff0\u4e4b\u5916\uff0c\u60a8\u8fd8\u5c06\u770b\u5230\u8be5\u5b9a\u5f8b\u53ca\u5176\u6570\u5b66\u516c\u5f0f\u7684\u793a\u4f8b\u3002\u6700\u540e\uff0c\u60a8\u5c06\u80fd\u591f\u9010\u6b65\u89e3\u51b3\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u7684\u7ec3\u4e60\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFCual-es-la-primera-ley-de-Newton\"><\/span>\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u662f\u4ec0\u4e48\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u7684\u9648\u8ff0<\/strong>\uff0c\u4e5f\u79f0\u4e3a\u60ef\u6027\u5b9a\u5f8b\uff0c\u89c4\u5b9a\u5982\u4e0b\uff1a <\/p>\n<div style=\"background:linear-gradient(to bottom, #FFFFFF 0%, #E1F5FE 100%);  padding-right: 27px; padding-left: 30px; padding-top: 23px; padding-bottom: 0.5px; border: 2px dashed #4FC3F7; border-radius:25px;\">\n<p>\u5982\u679c\u6ca1\u6709\u5916\u529b\u4f5c\u7528\uff0c\u7269\u4f53\u4fdd\u6301\u9759\u6b62\u6216\u5300\u901f\u8fd0\u52a8\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5fc5\u987b\u5411\u7269\u4f53\u65bd\u52a0\u529b\u624d\u80fd\u6539\u53d8\u5176\u8fd0\u52a8\u6216\u9759\u6b62\u72b6\u6001\u3002<\/p>\n<\/div>\n<p>\u4f8b\u5982\uff0c\u9759\u6b62\u5728\u5730\u9762\u4e0a\u7684\u7269\u4f53\u5728\u53d7\u5230\u529b\u4f5c\u7528\u4e4b\u524d\u4e0d\u4f1a\u79fb\u52a8\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u610f\u5473\u7740\uff0c\u5982\u679c\u4e00\u4e2a\u7269\u4f53\u505a\u5300\u901f\u76f4\u7ebf\u8fd0\u52a8\uff0c\u5c31\u610f\u5473\u7740\u6ca1\u6709\u5916\u529b\u4f5c\u7528\u5728\u5b83\u8eab\u4e0a\u6216\u8005\u6574\u4e2a\u7cfb\u7edf\u7684\u5408\u529b\u4e3a\u96f6\u3002<\/p>\n<p>\u725b\u987f\u5b9a\u5f8b\u603b\u5171\u6709\u4e09\u4e2a\uff0c\u6211\u4eec\u521a\u624d\u770b\u5230\u7684\u4e5f\u79f0\u4e3a\u60ef\u6027\u539f\u7406\uff0c\u7b2c\u4e8c\u5b9a\u5f8b\u6216\u52a8\u529b\u5b66\u57fa\u672c\u539f\u7406\uff0c\u4ee5\u53ca\u7b2c\u4e09\u5b9a\u5f8b\u6216\u4f5c\u7528\u548c\u53cd\u4f5c\u7528\u539f\u7406\u3002<\/p>\n<p>\u4ece\u903b\u8f91\u4e0a\u8bb2\uff0c\u8fd9\u4e09\u4e2a\u5b9a\u5f8b\u662f\u4ee5\u7269\u7406\u5b66\u5bb6\u827e\u8428\u514b\u00b7\u725b\u987f\u7684\u540d\u5b57\u547d\u540d\u7684\uff0c\u56e0\u4e3a\u4ed6\u662f\u7b2c\u4e00\u4e2a\u5728\u4ed6\u7684\u8457\u4f5c<em>\u300a\u81ea\u7136\u54f2\u5b66\u7684\u6570\u5b66\u539f\u7406\u300b<\/em>\u4e2d\u89e3\u91ca\u5b83\u4eec\u7684\u4eba\u3002\u8be5\u51fa\u7248\u7269\u88ab\u8ba4\u4e3a\u662f\u7269\u7406\u5b66\u7684\u652f\u67f1\u4e4b\u4e00\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejemplos-de-la-primera-ley-de-Newton\"><\/span>\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u7684\u4f8b\u5b50<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u8003\u8651\u5230\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\uff08\u6216\u60ef\u6027\u5b9a\u5f8b\uff09\u7684\u5b9a\u4e49\uff0c\u6211\u4eec\u5c06\u5728\u4e0b\u9762\u5206\u6790\u8be5\u89c4\u5219\u7684\u51e0\u4e2a\u4f8b\u5b50\u3002<\/p>\n<ol style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:25px\"><span style=\"color:#101010;font-weight: normal;\">\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u7684\u4e00\u4e2a\u660e\u663e\u4f8b\u5b50\u662f\u653e\u5728\u5730\u677f\u4e0a\u7684\u6c99\u53d1\u3002\u5982\u679c\u4e0d\u5bf9\u6c99\u53d1\u65bd\u52a0\u529b\uff0c\u5b83\u5c31\u4e0d\u4f1a\u79fb\u52a8\u5e76\u4fdd\u6301\u9759\u6b62\u3002\u4f46\u5982\u679c\u7528\u8db3\u591f\u5927\u7684\u529b\u63a8\u52a8\u6c99\u53d1\uff0c\u6c99\u53d1\u5c31\u4f1a\u83b7\u5f97\u901f\u5ea6\uff0c\u4ece\u800c\u6539\u53d8\u5176\u8fd0\u52a8\u72b6\u6001\u3002<\/span><\/li>\n<li style=\"margin-bottom:25px\"><span style=\"color:#101010;font-weight: normal;\">\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u7684\u53e6\u4e00\u4e2a\u4f8b\u5b50\u662f\u592a\u7a7a\u63a2\u6d4b\u5668\u5728\u592a\u7a7a\u4e2d\u4ee5\u6052\u5b9a\u901f\u5ea6\u79fb\u52a8\u3002\u4e00\u65e6\u514b\u670d\u4e86\u884c\u661f\u7684\u5f15\u529b\u5f71\u54cd\uff0c\u592a\u7a7a\u4e2d\u5c31\u4e0d\u5b58\u5728\u6469\u64e6\u529b\u6216\u4efb\u4f55\u5176\u4ed6\u529b\u3002\u56e0\u6b64\uff0c\u592a\u7a7a\u63a2\u6d4b\u5668\u5728\u592a\u7a7a\u4e2d\u4ee5\u6052\u5b9a\u901f\u5ea6\u79fb\u52a8\uff0c\u56e0\u4e3a\u6ca1\u6709\u529b\u4f5c\u7528\u5728\u5b83\u4e0a\u9762\u3002<\/span><\/li>\n<li><span style=\"color:#101010;font-weight: normal;\">\u4ee5\u6052\u5b9a\u901f\u5ea6\u79fb\u52a8\u7684\u6c7d\u8f66\u4e5f\u662f\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\uff08\u6216\u60ef\u6027\u5b9a\u5f8b\uff09\u7684\u4e00\u4e2a\u4f8b\u5b50\uff0c\u56e0\u4e3a\u8981\u5728\u6ca1\u6709\u52a0\u901f\u5ea6\u7684\u60c5\u51b5\u4e0b\u79fb\u52a8\uff0c\u5408\u529b\u5fc5\u987b\u4e3a\u96f6\u3002\u5f53\u6c7d\u8f66\u5411\u524d\u79fb\u52a8\u65f6\uff0c\u4f1a\u4ea7\u751f\u4e00\u4e2a\u4e0e\u8fd0\u52a8\u76f8\u53cd\u7684\u6469\u64e6\u529b\uff0c\u56e0\u6b64\u8981\u4ee5\u6052\u5b9a\u901f\u5ea6\u79fb\u52a8\uff0c\u6c7d\u8f66\u7684\u53d1\u52a8\u673a\u5fc5\u987b\u65bd\u52a0\u5927\u5c0f\u548c\u65b9\u5411\u76f8\u540c\u4f46\u65b9\u5411\u76f8\u53cd\u7684\u529b\u3002\u8fd9\u6837\uff0c\u4e24\u4e2a\u529b\u76f8\u4e92\u5bf9\u6297\uff0c\u6c7d\u8f66\u4ee5\u76f8\u540c\u7684\u901f\u5ea6\u79fb\u52a8\u3002<\/span> <\/li>\n<\/ol>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Formula-de-la-primera-ley-de-Newton\"><\/span>\u725b\u987f\u5b9a\u5f8b\u7684\u7b2c\u4e00\u4e2a\u516c\u5f0f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u4e3a\u4e86\u52a0\u6df1\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u7684\u6982\u5ff5\uff0c\u5728\u672c\u8282\u4e2d\u6211\u4eec\u5c06\u770b\u5230\u8868\u8fbe\u8be5\u5b9a\u5f8b\u7684\u516c\u5f0f\u3002<\/p>\n<p>\u4ece\u6570\u5b66\u4e0a\u8bb2\uff0c<strong>\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u7684\u516c\u5f0f<\/strong>\u6307\u51fa\uff0c\u5982\u679c\u7cfb\u7edf\u529b\u7684\u603b\u548c\u4e3a\u96f6\uff0c\u5219\u8be5\u7cfb\u7edf\u7684\u52a0\u901f\u5ea6\u4e5f\u4e3a\u96f6\u3002\u53cd\u4e4b\u4ea6\u7136\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-798449d310a6591fae0659a9d9319bc8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\sum F=0 \\ \\Leftrightarrow \\ \\frac{dv}{dt}=0\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"169\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p>\u540c\u6837\uff0c\u5982\u679c\u529b\u7684\u603b\u548c\u4e3a\u96f6\uff0c\u5219\u610f\u5473\u7740\u52a8\u91cf\uff08\u6216\u7ebf\u6027\u52a8\u91cf\uff09\u6052\u5b9a\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-94c8a25629b1104e0690373d70fa9a4c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\sum \\vv{F}=0 \\ \\Leftrightarrow \\ \\vv{p}=\\text{constant}\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"212\" style=\"vertical-align: -8px;\"><\/p>\n<\/p>\n<p>\u65e0\u8bba\u5982\u4f55\uff0c\u8fd9\u4e9b\u8868\u8fbe\u5f0f\u53ea\u662f\u7528\u6765\u901a\u8fc7\u4ee3\u6570\u6765\u8868\u8fbe\u89c4\u5f8b\u3002\u91cd\u8981\u7684\u662f\u4f60\u8981\u7406\u89e3\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u7684\u542b\u4e49\uff0c\u5e76\u4e14\u6240\u6709\u529b\u7684\u603b\u548c\u5fc5\u987b\u4e3a\u96f6\u624d\u80fd\u4f7f\u5b83\u6210\u7acb\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejercicios-resueltos-de-la-primera-ley-de-Newton\"><\/span>\u89e3\u51b3\u4e86\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u7684\u7ec3\u4e60<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 class=\"wp-block-heading\">\u7ec3\u4e601<\/h3>\n<p>\u7535\u68af\u9700\u8981\u591a\u5927\u7684\u529b\u624d\u80fd\u4e3e\u8d777\u516c\u65a4\u7684\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\">\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u6211\u4eec\u8981\u505a\u7684\u7b2c\u4e00\u4ef6\u4e8b\u5c31\u662f\u8ba1\u7b97\u5730\u7403\u5bf9\u7269\u4f53\u65bd\u52a0\u7684\u91cd\u529b\u3002\u4e3a\u6b64\uff0c\u6211\u4eec\u4f7f\u7528\u91cd\u529b\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-0180c5a990cc4c86131732dc83b2e98b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=m\\cdot g=7\\cdot 9,81=68,67 \\ N\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"244\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u56e0\u6b64\uff0c\u6839\u636e\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\uff0c\u5982\u679c\u7535\u68af\u5411\u4e0a\u65bd\u52a0 68.67 N \u7684\u5782\u76f4\u529b\uff0c\u5219\u7269\u4f53\u5c06\u4fdd\u6301\u9759\u6b62\uff0c\u56e0\u4e3a\u5408\u529b\u4e3a\u96f6\u3002\u56e0\u6b64\uff0c\u7535\u68af\u5fc5\u987b\u65bd\u52a0\u5927\u4e8e 68.67 N \u7684\u529b\u624d\u80fd\u5f00\u59cb\u4e0a\u5347\u3002<\/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>\u7535\u68af\u63d0\u5347\u8d28\u91cf\u4e3a 100 \u516c\u65a4\u7684\u7269\u4f53\u3002\u5728\u4efb\u4f55\u7ed9\u5b9a\u65f6\u95f4\uff0c\u62b5\u6297\u8fd0\u52a8\u7684\u6469\u64e6\u529b\u4e3a 300 N\uff0c\u7f06\u7ef3\u65bd\u52a0\u7684\u5411\u4e0a\u529b\u4e3a 1100 N\u3002\u7535\u68af\u662f\u52a0\u901f\u3001\u51cf\u901f\u8fd8\u662f\u5300\u901f\u79fb\u52a8\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\">\u9996\u5148\uff0c\u6211\u4eec\u7528\u91cd\u91cf\u516c\u5f0f\u8ba1\u7b97\u5730\u7403\u5bf9\u4eba\u4f53\u65bd\u52a0\u7684\u5f15\u529b\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-8967bd64872be26930c9d96806eb907b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=m\\cdot g=100\\cdot 9,81=981 \\ N\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"245\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u56e0\u6b64\uff0c\u5c06\u7535\u68af\u5411\u4e0b\u62c9\u7684\u6240\u6709\u529b\u7684\u603b\u548c\u4e3a\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-590875c04c7d7898b42966b5f4c2b6fa_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_{\\text{down}}=300+981=1281 \\ N\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"223\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u53e6\u4e00\u65b9\u9762\uff0c\u63a8\u52a8\u7535\u68af\u5411\u4e0a\u7684\u552f\u4e00\u529b\u91cf\u662f\u7f06\u7ef3\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-942d287388bd1536af62f73fdda4c356_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_{\\text{up}}=1100 \\ N\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"109\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u56e0\u6b64\u5411\u4e0b\u7684\u529b\u7684\u603b\u548c\u5927\u4e8e\u5411\u4e0a\u7684\u529b\uff0c\u56e0\u6b64\u7535\u68af\u5728\u8be5\u70b9\u51cf\u901f\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-8fa755aed0a89cc4ba13df28bc54056f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_{\\text{down}}>F_{\\text{up}} \\ \\longrightarrow \\ \\text{freins d&#8217;ascenseur}&#8221; title=&#8221;Rendered by QuickLaTeX.com&#8221; height=&#8221;19&#8243; width=&#8221;282&#8243; style=&#8221;vertical-align: -6px;&#8221;><\/p>\n<\/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>\u7528\u4e00\u6839\u4e0e\u5730\u9762\u6210 30\u00b0 \u89d2\u7684\u7ef3\u5b50\u62d6\u52a8\u4e00\u4e2a\u8d28\u91cf\u4e3a 60 \u516c\u65a4\u7684\u76d2\u5b50\u3002\u5982\u679c\u9700\u8981\u5728\u7ef3\u5b50\u4e0a\u65bd\u52a0 120 N \u7684\u529b\uff0c\u4f7f\u7bb1\u5b50\u4ee5 10 m\/s \u7684\u5300\u901f\u79fb\u52a8\uff0c\u5219\u7bb1\u5b50\u4e0e\u5730\u9762\u4e4b\u95f4\u7684\u52a8\u6469\u64e6\u7cfb\u6570\u5927\u7ea6\u662f\u591a\u5c11\uff1f <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-de-la-premiere-loi-de-newton.png\" alt=\"\u725b\u987f\u5b9a\u5f8b\u7684\u7b2c\u4e00\u4e2a\u95ee\u9898\" class=\"wp-image-683\" width=\"310\" height=\"148\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-de-la-premiere-loi-de-newton-300x143.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-de-la-premiere-loi-de-newton.png 716w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<\/div>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__FFF8E1\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#FFF8E1\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u67e5\u770b\u89e3\u51b3\u65b9\u6848<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u7531\u4e8e\u6211\u4eec\u77e5\u9053\u6240\u65bd\u52a0\u7684\u529b\u7684\u503e\u659c\u89d2\u5ea6\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4e09\u89d2\u6bd4\u5c06\u5176\u5206\u89e3\u4e3a\u5782\u76f4\u529b\u548c\u6c34\u5e73\u529b\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-ca8b091dde12db0c8ca49c760300a2c3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_x=120\\cdot \\text{cos}(30\u00ba)=103,92 \\N \" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"213\" 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-25f281fa8a4950c719d8c437d43a2ad0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_y=120\\cdot \\text{sin}(30\u00ba)=60 \\N \" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"177\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u53e6\u4e00\u65b9\u9762\uff0c\u6211\u4eec\u8ba1\u7b97\u5730\u7403\u5bf9\u76d2\u5b50\u65bd\u52a0\u7684\u91cd\u91cf\u7684\u529b\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-ea67ee8904c4125d742b69e19d73888f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=m\\cdot g=60\\cdot 9,81=588,6 \\ N\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"252\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u56e0\u6b64\uff0c\u7cfb\u7edf\u7684\u81ea\u7531\u4f53\u56fe\u4e3a\uff1a <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-de-la-premiere-loi-de-newton.png\" alt=\"\u89e3\u51b3\u4e86\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u7684\u8fd0\u7528\" class=\"wp-image-685\" width=\"380\" height=\"330\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-de-la-premiere-loi-de-newton-300x260.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-de-la-premiere-loi-de-newton-768x667.png 768w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-de-la-premiere-loi-de-newton.png 858w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<\/div>\n<p class=\"has-text-align-left\">\u8bf7\u8bb0\u4f4f\uff0c\u6240\u793a\u7684\u529b F <sub>x<\/sub>\u548c F <sub>y<\/sub>\u53ea\u662f 120 N \u529b\u7684\u5206\u89e3\uff0c\u56e0\u6b64\u5b83\u4eec\u4e0d\u662f\u540c\u65f6\u4f5c\u7528\uff0c\u800c\u662f\u4e24\u4e2a\u529b\u53d6\u4ee3\u4e86 120 N \u529b\u3002<\/p>\n<p class=\"has-text-align-left\">\u7531\u4e8e\u76d2\u5b50\u4ee5\u6052\u5b9a\u901f\u5ea6\u79fb\u52a8\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u5904\u4e8e\u5e73\u8861\u72b6\u6001\uff0c\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u5e94\u7528\u5e73\u8861\u6761\u4ef6\u6765\u89e3\u51b3\u8be5\u7ec3\u4e60\u3002\u6211\u4eec\u9996\u5148\u5efa\u7acb\u5782\u76f4\u5e73\u8861\u65b9\u7a0b\u6765\u6c42\u6cd5\u5411\u529b\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-cd141ea5ead6fddb72cef9f8fa7be69c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\somme F_y=0\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"52\" 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-8778dea9c0051935e9aaab0bac3ab68e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"N+F_y-P=0\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"125\" 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-9dec190f1ff4a2bf5b073f5b169fe9c2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"N=P-F_y\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"93\" 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-6edfe781d454d3447d884e9cb3e6a6cc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"N=588,6-60=528,6 \\ N\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"211\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6700\u540e\u6211\u4eec\u8bb0\u4e0b\u6c34\u5e73\u5e73\u8861\u65b9\u7a0b\u6765\u786e\u5b9a\u6469\u64e6\u7cfb\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-7bef12fab7ed21c7cc3b72174bdc17bd_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\somme F_x=0\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"53\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-fd006c9e3285f25e269d157af62c00b8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_x-F_{\\mu}=0\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"95\" 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-4b7147d63bcf72d9f1d064a05c7605c4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_x-\\mu N=0\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"101\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-d6478e911a77318f792371cce1fbbcae_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"103,92-\\mu \\cdot 528,6=0\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"172\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-44bb5b569ee86f7c867ab1d7f85394a5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"103,92=\\mu \\cdot 528,6\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"142\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-7c066cd7c93e1f6b0e18f76b15dd676f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\mu=\\cfrac{103,92}{528,6}=0,20\" title=\"Rendered by QuickLaTeX.com\" height=\"42\" width=\"147\" style=\"vertical-align: -16px;\"><\/p>\n<\/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\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\uff08\u4e5f\u79f0\u4e3a\u60ef\u6027\u5b9a\u5f8b\uff09\u7684\u5185\u5bb9\u3002\u9664\u4e86\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u7684\u9648\u8ff0\u4e4b\u5916\uff0c\u60a8\u8fd8\u5c06\u770b\u5230\u8be5\u5b9a\u5f8b\u53ca\u5176\u6570\u5b66\u516c\u5f0f\u7684\u793a\u4f8b &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/physigeek.com\/cn\/%e7%89%9b%e9%a1%bf%e7%ac%ac%e4%b8%80%e5%ae%9a%e5%be%8b%e6%83%af%e6%80%a7%e5%ae%9a%e5%be%8b\/\"> <span class=\"screen-reader-text\">\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\uff08\u60ef\u6027\u5b9a\u5f8b\uff09<\/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-39","post","type-post","status-publish","format-standard","hentry","category-5"],"yoast_head":"<!-- This site is optimized 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