gc textbook chapter 8 Rotational Motion (id: ad34f18de)

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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 sphere of radius 20.0 cm and 9xv1 :1ohpr2s7bu9y 0x obk,lxgi 8eb7 r la5cmass 1.80 kg sta5cil i;,2sgky i4,ll lrts from rest and rolls without slgyc,2l 5li4 li;,i klsipping down a 30.0 $^{\circ} $ incline that is 10.0 m long.
(a) Calculate its translational and rotational speeds when it reaches the bottom. $v_{CM}$ =    $\omega$ =    $rad/s$
(b) What is the ratio of translational to rotational KE at the bottom?    Avoid putting in numbers until the end so you can answer:
(c) do your answers in (a) and (b) depend on the radius of the sphere or its mass?

参考答案:
空格1: 8.37±2%  空格2: 41.8±2%  空格3: 2.5±2% 


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