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5.質量各為30kg、40kg之甲、乙兩小孩,站立在溼滑的水平冰原上,甲以240N之力推乙,作用力持續的時間為0.5s,則過程中甲、乙兩人哪些物理量不同? (A)受力時間 (B)受衝量大小 (C)
問題詳情
5.質量各為30kg、40kg之甲、乙兩小孩,站立在溼滑的水平冰原上,甲以240N之力推乙,作用力持續的時間為0.5s,則過程中甲、乙兩人哪些物理量不同?
(A)受力時間
(B)受衝量大小
(C)動量變化大小
(D)速度大小
(E)受力大小
參考答案
答案:D
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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