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]
17.12: A 5.00 kg block slides with u+c o (e-)-setfa s+ pxmhk0/t7jy*dx cniform accelera 6d/ 5lmzf9yhttion on a horizontal surface for 5.00 s. The block’s kinetic energy strhmz d59tl6yf/ictly decreases from 50.0 J to 20.0 J in this time.
Which one of the following choices best represents the magnitude of the block’s acceleration during the motion described?
A. $3.43 \; m/s^{2}$
B. $2.40 \; m/s^{2}$
C. $1.20 \; m/s^{2}$
D. $ 0.329\; m/s^{2}$
E. $ 0.232\; m/s^{2}$
参考答案: D
本题详细解析:
暂无
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