本题目来源于试卷: Physics Unit6: Work and Energy，类别为 通用国际物理
[单选题]
A 60-kg skier starts from rest from the top of a 50-m high slop s:7* 3eke;olb6 oy5fdg5z kxze. If the work d:g5e d*ly3o6kozsbe kxz 75f; l4 pqo d y*ll-d* .sk2nku+,bdone by friction is*ud4klopl-* .sn d+b2klqyd , $-6.0 \times 10^{3} \; J$, what is the speed of the skier on reaching the bottom of the slope?
A. 17 m/s
B. 24 m/s
C. 28 m/s
D. 31 m/s
E. 34 m/s
参考答案: C
本题详细解析:
暂无
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