問題詳情
53. 物體作直線運動，因它受到一個力f的作用，使其速率逐漸變慢。關於此運動中各物理量的敘述，下列何者正確？
(A)物體位移的方向與力f的方向相同
(B)物體速度的方向與力f的方向相同
(C)物體位移的方向與速度的方向相反
(D)物體加速度的方向與速度的方向相反
(A)物體位移的方向與力f的方向相同
(B)物體速度的方向與力f的方向相同
(C)物體位移的方向與速度的方向相反
(D)物體加速度的方向與速度的方向相反
參考答案
答案：D
難度：適中0.666667
統計：A(3),B(5),C(3),D(24),E(0)
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