作者Lheavens (Lash)
看板TransPhys
标题[力学] 平衡球棒的问题
时间Sun Nov 1 00:12:19 2009
It is easier to balance a baseball bat with your finger at the thin end.
Try it and explain why.
我物理很烂....和同学的讨论过程中有人以质心为转点，有人以手为转点...然後
讨论不出个所以然，麻烦各位先贤赐教了
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