問題詳情
38. 在水平地面上,小沖以大小相同的水平力分別推動質量為 5 公斤與 10 公斤的貨物 10 公尺,水平力的方向與貨物位移的方向相同。若小沖對此兩貨物所作的功分別為 W1 與 W2,則下列何者正確?
(A) 4 W1=W2
(B) 2 W1=W2
(C) W1=2 W2
(D) W1=W2
(A) 4 W1=W2
(B) 2 W1=W2
(C) W1=2 W2
(D) W1=W2
參考答案
無參考答案
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