Mechanical Advantage (id: cf8cdd29b)

本题目来源于试卷: Mechanical Advantage，类别为 美国物理杯赛(Physics Bowl)

[单选题]
11.36: For the inclinedwtiy,,* c3q hp plane shown, a force of 150 N applied pf4t,3sjl.2 n2 ptauojarallel to the incline’s surface is needed to pull the object of mass M=10 kg along the entire length 43nj t2. s,to2 flpuajof the incline’s surface at a constant speed. What is the actual mechanical advantage (AMA) for this scenario?

A. 2/3
B. 3/2
C. 2/5
D. 3/5
E. 5/3


参考答案:  A


本题详细解析: 暂无

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