Typical Forces (id: 7ca6e553d)

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

[单选题]
14.20: A uniform block of mass misplaced on an inclined g+ttwbkzsz(w1 -/ t ow5w; js0plane ofn/tr0y( ui8+ z(o wikf angle θ . When released, the block does not move. It is determined that the normal force acting from the incline on the block has a magnitude of 62 N while the force of static friction acting on the block has a magnitude of 38 N. The coefficient of static friction between the block and inclined plane is 0.92. Which one of the fikz ( 0i+w/ yo(nrft8uollowing choices best represents the mass,m, of the block?

A. 2.4 kg
B. 6.2 kg
C. 7.3 kg
D. 8.4 kg
E. 10.0 kg


参考答案:  C


本题详细解析: 暂无

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