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:a+ljs:ca-k7z:kqmkh j(1 nv pirouette (a fas iu0nl-lu ;8ach)r2r )hxv7 omt spin) by pulling in his outstretched arms close to his body. What happens to his angular momentum aboixm78olanl2 u-0c; ur)vhhr) ut 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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