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範例:固定力作功與牛頓運動定律

用繩將質量為M的木塊垂直放下。以g/3的向下加速度下降距離L，則繩子對木塊所作的功為何?


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Posted in 功與變力作功.

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By admin – 2009 年 03 月 24 日

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