本题目来源于试卷: Work Energy and Power，类别为 美国物理杯赛(Physics Bowl)
[单选题]
09.13: In the figure to the right, n hazyt/ 1sl7nv*.xl 4ya 63 bwdan/ath/;lnk 5lu) 6pa box moves with speed 5.00 m/s at the bottom of a rough, fixed inclined plane. The box slides with constant acceleration to the top of the incline as it is being pushed directly to the left with a constant force ofF = 240N. The box, of mass m= 20.0 kg, has a speed )bau35 nk;l/p6hada w yl6t/n of 2.50 m/swhen it reaches the top of the incline.
What is the magnitude of the acceleration of the box as it slides up the incline?
A. $12 \; m/s^{2}$
B. $10\; m/s^{2}$
C. $ 5.88\; m/s^{2}$
D. $ 1.88\; m/s^{2}$
E. $0.938 \; m/s^{2}$
参考答案: E
本题详细解析:
暂无
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