本题目来源于试卷: Work Energy and Power,类别为 美国物理杯赛(Physics Bowl)
[单选题]
12.16: A constant fo 7 fczn.acug713tq)i wr 4yzmu .,q ffpv (7tpw.ce F=50N (as shown in the figure) is applied for the 6.0 meter motion of the box upward along the incline. ., pu( my74fvq wzf.tpThe mass of the block is M=15 kg. Which one of the following choices best represents the work done by the force F onthe box for the motion?

A. 300J
B. 282J
C. 260J
D. 193J
E. 150J
参考答案: B
本题详细解析:
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