本题目来源于试卷: Physics Unit8: Rotational Motion，类别为 Generic Physics
[单选题]
An ice skater perforrwo,a,wx61 nwoa v-k;mp.eal w.l5fhski 60 n rhc+;m:s a pirouette (a fast spin) by pulling in his outstretched arms close to his body. What happens to his rotational kinetic6a fk+; 5i.el0n : srlhmhpw.c energy about the axis of rotation?
A. It does not change.
B. It increases.
C. It decreases.
D. It changes, but it is impossible to tell which way.
参考答案: B
本题详细解析:
暂无
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Post time 2024-1-22 02:51:16