基本的動力學 - 土木
By Hedwig
at 2010-04-20T19:42
at 2010-04-20T19:42
Table of Contents
86二技聯招有一題
跳水選手重180磅
從高2ft(英呎)處跳到某粱端點
ps1英呎=12英吋
問一下
這樣外力不是180磅(非答案)而是多少呢?
謝謝
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Tags:
土木
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at 2010-04-21T07:38
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