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]
02.42: A small box of mass m isplaced on top of gul8g;dw6k:amdt. 4q a larg xm1+j 1n k1;ac8zhrgoer box of mass 2m as shown in the diagram at right. When a force F is applied to the large box, both boxes accelerate to the right with the same acceleration. The coefficient of fricti 1c+k8jxham1oz 1g r;n on between all surfaces is μ , what would be the force accelerating the smaller mass?
A. $\frac{F}{3}$− $mgμ $
B. $ F − 3mgμ $
C. $F−mgμ$
D. $\frac{F}{3}$− $\frac{1}{3}$$mgμ$
E. $\frac{F}{3}$
参考答案: A
本题详细解析:
暂无
| 
