{"id":18801,"date":"2011-01-03T15:56:47","date_gmt":"2011-01-03T07:56:47","guid":{"rendered":"http:\/\/highscope.ch.ntu.edu.tw\/wordpress\/?p=18801"},"modified":"2021-10-06T16:29:54","modified_gmt":"2021-10-06T08:29:54","slug":"%e6%81%a2%e5%be%a9%e4%bf%82%e6%95%b8%ef%bc%88coefficient-of-restitution%ef%bc%89","status":"publish","type":"post","link":"http:\/\/localhost\/%e6%81%a2%e5%be%a9%e4%bf%82%e6%95%b8%ef%bc%88coefficient-of-restitution%ef%bc%89\/","title":{"rendered":"\u6062\u5fa9\u4fc2\u6578\uff08Coefficient of restitution\uff09"},"content":{"rendered":"<div class=\"pf-content\"><p><strong><span style=\"color: #ff6600;\">\u6062\u5fa9\u4fc2\u6578\uff08Coefficient of restitution\uff09<br \/>\n<\/span><span style=\"color: #008000;\">\u81fa\u4e2d\u7e23\u7acb\u4e2d\u6e2f\u9ad8\u7d1a\u4e2d\u5b78\u7269\u7406\u79d1\u738b\u5c0a\u4fe1\u8001\u5e2b\/\u570b\u7acb\u5f70\u5316\u5e2b\u7bc4\u5927\u5b78\u6d2a\u9023\u8f1d\u6559\u6388\u8cac\u4efb\u7de8\u8f2f<br \/>\n<\/span><\/strong><br \/>\n\u6240\u8b02\u6062\u5fa9\u4fc2\u6578\u662f\u6307\u6062\u5fa9\u671f\u9593\u8207\u4f5c\u7528\u671f\u9593\u885d\u91cf(impulse)\u7684\u6bd4\u503c\u3002\u7c21\u5316\u8d77\u898b\uff0c\u6211\u5011\u5148\u4ee5\u4e00\u7dad\u78b0\u649e\u70ba\u4f8b\u4f86\u8a0e\u8ad6\uff0c\u5b9a\u7fa9\u5982\u4e0b:<br \/>\n<img decoding=\"async\" id=\"aimg_1992\" alt=\"0613-1.png\" src=\"http:\/\/highscope.ch.ntu.edu.tw\/phpBB\/attachments\/month_1011\/10112212205fabe1541df1c4f5.png\" width=\"105\" \/><\/p>\n<p><!--more-->\u5176\u4e2d\uff0cF<sub>r<\/sub>\u8868\u793a\u5728\u6062\u5fa9\u671f\u9593\u7684\u4f5c\u7528\u529b\uff0cF<sub>d<\/sub>\u8868\u793a\u5728\u5f62\u8b8a\u671f\u9593\u7684\u4f5c\u7528\u529b\u3002<br \/>\n\u56e0\u6b64\uff0c\u6211\u5011\u6bd4\u8f03\u5e38\u7528\u78b0\u649e\u5f8c\u8207\u78b0\u649e\u524d\u76f8\u5c0d\u901f\u5ea6(relative speed)\u7684\u6bd4\u503c\u4f86\u5b9a\u7fa9\u6062\u5fa9\u4fc2\u6578\uff0c\u5b9a\u7fa9\u5982\u4e0b:<br \/>\n<img decoding=\"async\" id=\"aimg_1993\" alt=\"0613-2.png\" src=\"http:\/\/highscope.ch.ntu.edu.tw\/phpBB\/attachments\/month_1011\/10112212209c616066d46a52c8.png\" width=\"133\" \/><\/p>\n<p>\u5176\u4e2d\uff0c\u7b2c\u4e00\u500b\u7269\u9ad4\u78b0\u649e\u524d\u901f\u5ea6\u70bav<sub>1<\/sub>\uff0c\u78b0\u649e\u5f8c\u901f\u5ea6\u70bav<sub>1f<\/sub>\uff0c\u7b2c\u4e8c\u500b\u7269\u9ad4\u78b0\u649e\u524d\u901f\u5ea6\u70bav<sub>2<\/sub>\uff0c\u78b0\u649e\u5f8c\u901f\u5ea6\u70bav<sub>2f<\/sub>\u3002<\/p>\n<p>\u6062\u5fa9\u4fc2\u6578\u53ef\u4ee5\u4f9d\u7167\u78b0\u649e\u7684\u52d5\u80fd\u5b88\u6046\u8207\u5426\u5206\u70ba\u4e09\u985e:<\/p>\n<p>\u7b2c\u4e00\u985e\u70ba\u5f48\u6027\u78b0\u649e\uff0c\u78b0\u649e\u524d\u76f8\u5c0d\u901f\u5ea6\u7b49\u65bc\u78b0\u649e\u5f8c\u76f8\u5c0d\u901f\u5ea6\uff0c\u56e0\u6b64\u6062\u5fa9\u4fc2\u6578\u7b49\u65bc1\uff0c\u610f\u5373\u78b0\u649e\u524d\u5f8c\u52d5\u80fd\u5b88\u6046\u3002<\/p>\n<p>\u7b2c\u4e8c\u985e\u70ba\u975e\u5f48\u6027\u78b0\u649e\uff0c\u800c\u4e14\u78b0\u649e\u5f8c\u52d5\u80fd\u6bd4\u78b0\u649e\u524d\u589e\u52a0\uff0c\u6b64\u6642\u6062\u5fa9\u4fc2\u6578\u5927\u65bc1\uff0c\u5e38\u898b\u7684\u4f8b\u5b50\u662f\u7206\u70b8\u3002(\u8a3b:\u4f9d\u7167\u7dad\u57fa\u767e\u79d1\u539f\u6587\uff0c\u90e8\u5206\u7406\u8ad6\u4e0d\u628a\u9019\u7a2e\u78b0\u649e\u5217\u70ba\u975e\u5f48\u6027\u78b0\u649e\uff0c\u56e0\u6b64\u6b78\u7d0d\u51fa\u8f03\u70ba\u72f9\u7fa9\u7684\u975e\u5f48\u6027\u78b0\u649e\uff0c\u4f7f\u5f97\u6062\u5fa9\u4fc2\u6578\u53ea\u6eff\u8db3\u7b2c\u4e09\u985e\u7684\u689d\u4ef6:\u4ecb\u5728\u96f6\u82071\u4e4b\u9593)\u3002<\/p>\n<p>\u7b2c\u4e09\u985e\u70ba\u975e\u5f48\u6027\u78b0\u649e\uff0c\u800c\u4e14\u78b0\u649e\u5f8c\u52d5\u80fd\u6bd4\u78b0\u649e\u524d\u6e1b\u5c11\uff0c\u6b64\u6642\u6062\u5fa9\u4fc2\u6578\u5c0f\u65bc1\u3002\u9019\u662f\u6700\u5e38\u898b\u7684\u975e\u5f48\u6027\u78b0\u649e\uff0c\u52d5\u80fd\u8f49\u8b8a\u6210\u71b1\u80fd\u6216\u5167\u80fd\u3002\u5728\u6b64\u985e\u975e\u5f48\u78b0\u4e2d\uff0c\u6709\u4e00\u7a2e\u7279\u4f8b\u6700\u5e38\u88ab\u62ff\u51fa\u4f86\uff0c\u90a3\u5c31\u662f\u5b8c\u5168\u975e\u5f48\u78b0(perfectly inelastic collision)\uff0c\u78b0\u649e\u5f8c\u5169\u8005\u5408\u70ba\u4e00\u9ad4\uff0c\u901f\u5ea6\u76f8\u7b49\uff0c\u5373v<sub>1f<\/sub>=v<sub>2f<\/sub>\uff0c\u56e0\u6b64\u6211\u5011\u53ef\u4ee5\u5f97\u77e5:\u6062\u5fa9\u4fc2\u6578\u7b49\u65bc\u96f6\u3002\u56e0\u70ba\u5169\u8005\u901f\u5ea6\u76f8\u7b49\uff0c\u56e0\u6b64\u9019\u500b\u901f\u5ea6\u4e5f\u6703\u7b49\u65bc\u8cea\u5fc3\u901f\u5ea6\u3002<br \/>\n\u5728\u61c9\u7528\u65b9\u9762\uff0c\u9ad8\u723e\u592b\u7403\u6700\u5e38\u4f7f\u7528\u6062\u5fa9\u4fc2\u6578\uff0c\u4e00\u822c\u800c\u8a00\uff0c\u9ad8\u723e\u592b\u7403\u7684\u6062\u5fa9\u4fc2\u6578\u7d04\u4ecb\u57280.83\u52300.78\u4e4b\u9593\u3002\u800c\u7db2\u7403\u62cd\u7684\u6062\u5fa9\u4fc2\u6578\u5247\u7565\u9ad8\uff0c\u7d040.85\u3002<\/p>\n<p>\u6211\u5011\u53ef\u4ee5\u5229\u7528\u7b2c\u4e8c\u500b\u7269\u9ad4\u56fa\u5b9a\u4e0d\u52d5\u4f86\u6e2c\u91cf\u6062\u5fa9\u4fc2\u6578\uff0c\u6216\u628a\u7b2c\u4e8c\u500b\u7269\u9ad4\u7684\u8cea\u91cf\u8996\u70ba\u7121\u9650\u5927\uff0c\u6b64\u6642\u6062\u5fa9\u4fc2\u6578\u53ef\u4ee5\u8868\u793a\u6210:<br \/>\n<img decoding=\"async\" id=\"aimg_1994\" onmouseover=\"showMenu({'ctrlid':this.id,'pos':'12'})\" alt=\"0613-3.png\" src=\"http:\/\/highscope.ch.ntu.edu.tw\/phpBB\/attachments\/month_1011\/1011221220327268c9a5472d4d.png\" width=\"74\" \/><\/p>\n<div id=\"aimg_1994_menu\">\n<div><span style=\"font-size: medium;\">\u5176\u4e2d\uff0cv<sub>f<\/sub>\u8207v<sub>i<\/sub>\u5206\u5225\u8868\u793a\u7b2c\u4e00\u500b\u7269\u9ad4\u78b0\u649e\u524d\u8207\u78b0\u649e\u5f8c\u76f8\u5c0d\u65bc\u7b2c\u4e8c\u500b\u7269\u9ad4(\u975c\u6b62)\u7684\u901f\u7387\u3002<\/span><\/div>\n<div><span style=\"font-size: medium;\">\u7576\u9019\u500b\u7269\u9ad4\u4f5c\u521d\u901f\u70ba\u96f6\u7684\u81ea\u7531\u843d\u9ad4\u6642\uff0c\u82e5\u843d\u4e0b\u9ad8\u5ea6\u8b8a\u5316\u4e0d\u5927\uff0c\u91cd\u529b\u52a0\u901f\u5ea6\u53ef\u4ee5\u8996\u70ba\u5b9a\u503c\uff0c\u4e0a\u5f0f\u53ef\u4ee5\u8868\u793a\u6210:<\/span><br \/>\n<img decoding=\"async\" id=\"aimg_1995\" alt=\"0613-4.png\" src=\"http:\/\/highscope.ch.ntu.edu.tw\/phpBB\/attachments\/month_1011\/1011221220f136465dac1bc7e5.png\" width=\"89\" \/><\/div>\n<\/div>\n<p>\u5176\u4e2dH\u70ba\u843d\u4e0b\u4e4b\u6700\u5927\u9ad8\u5ea6\uff0ch\u70ba\u53cd\u5f48\u4e4b\u6700\u5927\u9ad8\u5ea6\u3002<\/p>\n<p><img decoding=\"async\" id=\"aimg_1996\" alt=\"0613-5.png\" src=\"http:\/\/highscope.ch.ntu.edu.tw\/phpBB\/attachments\/month_1011\/1011221220995e73787e9fb171.png\" width=\"350\" \/><\/p>\n<p>\u61c9\u7528\u6062\u5fa9\u4fc2\u6578\uff0c\u53ef\u4ee5\u5c07\u4e00\u7dad\u78b0\u649e\u63a8\u5ee3\u70ba\u9069\u7528\u5f48\u6027\u8207\u975e\u5f48\u6027\u7684\u5f0f\u5b50:<br \/>\n<img decoding=\"async\" id=\"aimg_1997\" alt=\"0613-6.png\" src=\"http:\/\/highscope.ch.ntu.edu.tw\/phpBB\/attachments\/month_1011\/101122122088bb5a212cf85b3b.png\" width=\"337\" \/><br \/>\n<img decoding=\"async\" id=\"aimg_1991\" alt=\"0613-7.png\" src=\"http:\/\/highscope.ch.ntu.edu.tw\/phpBB\/attachments\/month_1011\/10112212205816ae968872c07b.png\" width=\"337\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u53c3\u8003\u8cc7\u6599: <\/strong><a href=\"http:\/\/en.wikipedia.org\/wiki\/Coefficient_of_restitution\" target=\"_blank\" onfocus=\"undefined\">http:\/\/en.wikipedia.org\/wiki\/Coefficient_of_restitution<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u6062\u5fa9\u4fc2\u6578\uff08Coefficient of restitution\uff09 \u81fa\u4e2d\u7e23\u7acb\u4e2d\u6e2f\u9ad8\u7d1a\u4e2d\u5b78\u7269\u7406\u79d1\u738b\u5c0a\u4fe1\u8001\u5e2b\/\u570b\u7acb\u5f70&hellip;<\/p>\n","protected":false},"author":50,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[107,13,3],"tags":[2173,2176],"class_list":["post-18801","post","type-post","status-publish","format-standard","hentry","category-physics00","category-physics01-10","category-physics01","tag-2173","tag-2176","loop-entry","cat-107","cat-13","cat-3","no-thumbnail"],"views":26782,"_links":{"self":[{"href":"http:\/\/localhost\/wp-json\/wp\/v2\/posts\/18801","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/localhost\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/localhost\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/localhost\/wp-json\/wp\/v2\/users\/50"}],"replies":[{"embeddable":true,"href":"http:\/\/localhost\/wp-json\/wp\/v2\/comments?post=18801"}],"version-history":[{"count":1,"href":"http:\/\/localhost\/wp-json\/wp\/v2\/posts\/18801\/revisions"}],"predecessor-version":[{"id":89063,"href":"http:\/\/localhost\/wp-json\/wp\/v2\/posts\/18801\/revisions\/89063"}],"wp:attachment":[{"href":"http:\/\/localhost\/wp-json\/wp\/v2\/media?parent=18801"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/localhost\/wp-json\/wp\/v2\/categories?post=18801"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/localhost\/wp-json\/wp\/v2\/tags?post=18801"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}