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範例:衝量與衝擊力

一棒球質量0.2公斤，當以30公尺/秒的速度水平向東擲出，被棒擊中後，以40公尺/秒水平向北方向飛去。則(1)試求擊球時的衝量。(2)設擊球時球與棒僅接觸0.01秒，則在此時間內的平均作用力為多少? [83台中女中]

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Posted in 動量與衝量.

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By admin – 2008 年 12 月 29 日

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