本题目来源于试卷: Physics Unit4: Force Dynamics & Newton's Laws，类别为 通用国际物理
[单选题]
Two boxes of masses m and 3m are stacked. (S g8 jp(k7z)a2iaq9oagee Fig. 4-6.) The s j w nypj*j (f(r1f5qt8v.a.l eurface between the more massive box and the horizontal surface is sm ft ( (l.jqrpfve1njj 5*aw. y8ooth and the surface between the boxes is rough. If the less massive box does not slide on the more massive box, what is the static friction force on the less massive box? 
A. F
B. F/2
C. F/3
D. F/4
参考答案: C
本题详细解析:
暂无
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