本题目来源于试卷: Physics Unit8: Rotational Motion，类别为 通用国际物理
[单选题]
An ice skater performs a pirouette (a fast spin) by pulling in ti9t+ 7g s( zi8ijfu8vo3xe+vhis outstretchedlajbg- 7dts(8otf c) , arms tgdtb8j -ls(ca7, )ofclose to his body. What happens to his angular momentum 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: A
本题详细解析:
暂无
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