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 has a momengaks aw472a-ito2rj 6 t rt a/z l:b. 6)z9u)kllsisie)of inertia of $5.0 \; kgm^{2}$ when her arms are outstretched. At this time she is spinning at 3.0 revolutions per second (rps). If she pulls in her arms and decreases her moment of inertia to $2.0 \; kgm^{2}$, how fast will she be spinning?
A. $2.0 \; rps$
B. $3.3 \; rps$
C. $7.5 \; rps$
D. $10 \; rps$
参考答案: C
本题详细解析:
暂无
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