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範例:一維的質心運動之應用(一)

如下圖所示,有質量m1,m2物體(m1>m2),以一輕繩繫住,跨過一無摩擦之定滑輪,兩者同時自靜止釋放,則釋放後(A)m1,m2的加速度大小相同均為 ,m2方向向上;m1向下(B)質心加速度為 (C)系統質心所受之外力為(m1-m2)g (D)當m1著地時歷時 (E)m1著地時質心速度為

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Posted in 多質點系統的質心運動.

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