{"id":18592,"date":"2026-08-28T15:35:39","date_gmt":"2026-08-28T05:35:39","guid":{"rendered":"https:\/\/geoffreychen.com\/why-average-speed-is-not-the-simple-average\/"},"modified":"2026-08-28T15:35:39","modified_gmt":"2026-08-28T05:35:39","slug":"why-average-speed-is-not-the-simple-average","status":"publish","type":"post","link":"https:\/\/geoffreychen.com\/zh\/why-average-speed-is-not-the-simple-average\/","title":{"rendered":"\u5f80\u8fd4\u8def\u7a0b\u7684\u5e73\u5747\u901f\u5ea6\u4e3a\u4ec0\u4e48\u4e0d\u662f\u4e24\u4e2a\u901f\u5ea6\u76f4\u63a5\u5e73\u5747\uff1f"},"content":{"rendered":"<\/p>\n<p><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/public-assets.geoffreychen.com\/wordpress\/articles\/why-average-speed-is-not-the-simple-average\/4d25ca3742200eb59cf39a6b.jpg?w=1140&#038;ssl=1\" alt=\"\u5f80\u8fd4\u8def\u7a0b\u7684\u5e73\u5747\u901f\u5ea6\u4e3a\u4ec0\u4e48\u4e0d\u662f\u4e24\u4e2a\u901f\u5ea6\u76f4\u63a5\u5e73\u5747\uff1f\" loading=\"lazy\"><\/p>\n<p>\u5047\u8bbe\u4e00\u6bb560\u516c\u91cc\u7684\u8def\uff0c\u53bb\u7a0b\u901f\u5ea6\u662f60\u516c\u91cc\/\u5c0f\u65f6\uff0c\u56de\u7a0b\u662f40\u516c\u91cc\/\u5c0f\u65f6\u3002\u628a\u4e24\u4e2a\u901f\u5ea6\u76f8\u52a0\u9664\u4ee5\u4e8c\uff0c\u4f1a\u5f97\u523050\u516c\u91cc\/\u5c0f\u65f6\uff1b\u4f46\u5168\u7a0b\u5e73\u5747\u901f\u5ea6\u5176\u5b9e\u662f48\u516c\u91cc\/\u5c0f\u65f6\u3002<\/p>\n<p>\u5e73\u5747\u901f\u5ea6\u7684\u5b9a\u4e49\u59cb\u7ec8\u662f\u603b\u8def\u7a0b\u9664\u4ee5\u603b\u65f6\u95f4\u3002\u53bb\u7a0b60\u516c\u91cc\u75281\u5c0f\u65f6\uff0c\u56de\u7a0b60\u516c\u91cc\u75281.5\u5c0f\u65f6\uff1b\u603b\u8def\u7a0b120\u516c\u91cc\uff0c\u603b\u65f6\u95f42.5\u5c0f\u65f6\uff0c\u6240\u4ee5120\u00f72.5\uff1d48\u3002\u8f83\u6162\u7684\u4e00\u7a0b\u867d\u7136\u8ddd\u79bb\u76f8\u540c\uff0c\u5374\u5360\u7528\u4e86\u66f4\u591a\u65f6\u95f4\uff0c\u56e0\u6b64\u5bf9\u5168\u7a0b\u5e73\u5747\u503c\u7684\u5f71\u54cd\u66f4\u5927\u3002<\/p>\n<p>\u53ea\u6709\u4e24\u79cd\u901f\u5ea6\u7ef4\u6301\u7684\u65f6\u95f4\u76f8\u7b49\u65f6\uff0c\u76f4\u63a5\u53d6\u7b97\u672f\u5e73\u5747\u624d\u6b63\u786e\u3002\u4f8b\u5982\u5148\u4ee560\u516c\u91cc\/\u5c0f\u65f6\u5f001\u5c0f\u65f6\uff0c\u518d\u4ee540\u516c\u91cc\/\u5c0f\u65f6\u5f001\u5c0f\u65f6\uff0c\u603b\u8def\u7a0b100\u516c\u91cc\u3001\u603b\u65f6\u95f42\u5c0f\u65f6\uff0c\u5e73\u5747\u6b63\u597d\u662f50\u3002\u7b49\u8ddd\u79bb\u800c\u65f6\u95f4\u4e0d\u540c\u7684\u60c5\u5f62\u5bf9\u5e94\u7684\u662f\u8c03\u548c\u5e73\u5747\uff0c\u4f46\u8bb0\u4f4f\u540d\u79f0\u5e76\u4e0d\u91cd\u8981\uff1b\u5148\u628a\u8def\u7a0b\u548c\u65f6\u95f4\u5206\u522b\u76f8\u52a0\uff0c\u6c38\u8fdc\u66f4\u53ef\u9760\u3002<\/p>\n<p>\u8fd8\u8981\u533a\u5206\u5e73\u5747\u901f\u5ea6\u4e0e\u5e73\u5747\u901f\u5ea6\u77e2\u91cf\u3002\u5f80\u8fd4\u539f\u5730\u65f6\u4f4d\u79fb\u4e3a\u96f6\uff0c\u6240\u4ee5\u5e73\u5747\u901f\u5ea6\u77e2\u91cf\u4e3a\u96f6\uff1b\u4f46\u6c7d\u8f66\u786e\u5b9e\u8d70\u4e86120\u516c\u91cc\uff0c\u5e73\u5747\u901f\u7387\u4ecd\u662f48\u516c\u91cc\/\u5c0f\u65f6\u3002\u4e2d\u6587\u65e5\u5e38\u6240\u8bf4\u7684\u201c\u5e73\u5747\u901f\u5ea6\u201d\u901a\u5e38\u6307\u540e\u8005\u3002<\/p>\n<p><a href=\"https:\/\/openstax.org\/books\/college-physics-2e\/pages\/2-3-time-velocity-and-speed\" rel=\"nofollow\">https:\/\/openstax.org\/books\/college-physics-2e\/pages\/2-3-time-velocity-and-speed<\/a><\/p>\n<p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":17897162,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_geoff_meta_description_en":"Average speed is total distance divided by total time. 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