gc textbook chapter 8 Rotational Motion (id: a3e5a7766)

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本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified

[填空题]
(a) What is the angular momentu lba hq)yu+l80m of a figure skater spinnin; e1d/-qixrq8my yxyopw;9ru / 1nm,ng at 3.5 $rev/s$ with arms in close to her body, assuming her to be a uniform cylinder with a height of 1.5 m, a radius of 15 cm, and a mass of 55 kg?    $kg \cdot m^2$
(b) How much torque is required to slow her to a stop in 5.0 s, assuming she does not move her arms?    $m \cdot N$

参考答案:
空格1: 14±2%  空格2: -2.7±2% 


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