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gc textbook chapter 8 Rotational Motion (id: 4e9d162d5)

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admin 发表于 2024-12-23 18:19:55 | 显示全部楼层 |阅读模式
本题目来源于试卷: gc textbook chapter 8 Rotational Motion,类别为 IB物理学

[填空题]
(a) A yo-yo is made of two solid cylindrij/* cl0z nfq3wo23 br x(lqk;ecal disks, each of mass 0.:q*l6vb2wgrw:ybknf48f0 n h 050 kg and diameter 0.075 m, joined by a (concentric) thin solid cylindrical hub of mass 0.0050 kg and diameter 0.010 m. Use conservation of energy to calcula 6g0whvnb4 2:f yfwkl8:*qnbr te the linear speed of the yo-yo when it reaches the end of its 1.0-m-long string, if it is released from rest.    $m/s$
(b) What fraction of its kinetic energy is rotational?    %




参考答案:
空格1: 0.84±2%空格2: 96±2%


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