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:r 46.znhli6n lyu a2d from the :u0o sas: k,lnvrm 5p hrie7rt)zl 2)3top of a 50-m high slope. If the work done by3 ln rprltvms a)z 0eu:ohsk7i)r5,2: friction is $-6.0 \times 10^{3} \; J$, what is the speed of the skier on reaching the bottom of the slope?
A. 17 m/s
B. 24 m/s
C. 34 m/s
D. 31 m/s
参考答案: C
本题详细解析:
暂无
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