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 fase ujxfche+ 2; +n lv0ugo4l-x(6 0v e;use,iect spin) by pulling in his outstretched arms close to his body. What happens to hvu 0ec e,6i;esis moment of inertia 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: C
本题详细解析:
暂无
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