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範例:F=ma

施一力於質量為M的滑車上時，其加速度為a，若滑車上再負載質量為m之磚塊時，其加速度變為a/3，則兩者質量比M：m為多少?


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Posted in 牛頓第二運動定律.

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By admin – 2010 年 10 月 22 日

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