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範例:牛頓第二運動定律與動量

300g之球以6m/s之速度60o入射角打中一牆壁,然後以同樣的速度及角度彈出,球與牆之接觸時間為0.01秒,求(1)球所受動量變化 (2)不計重力,球施於牆的平均力。


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Posted in 牛頓第二運動定律.

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By admin – 2010 年 10 月 26 日

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