Overweight and underweight (id: a59d9335e)

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

[单选题]
17.25: A box slides wi,xq +(mqu9 c6ok+vqa xdemm56th uniform acbv*afq;v.0ule lv) 7m*l, 4+pnkjt wkceleration up an incline. The box has an initial speed of 9.0 m/s and rises vertically 2.60 before coming to rest. If tpuj0v7wk vq* n bm*f)ke.;4+l ,tlavlhe angle of the incline is$30^{\circ}$, what is the coefficient of kinetic friction between the box and the incline?

A. 0.298
B. 0.322
C. 0.372
D. 0.483
E. 0.557


参考答案:  B


本题详细解析: 暂无

微信扫一扫，分享更方便