ch10-p062 - 62. (a) We use the parallel-axis theorem to...

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62. (a) We use the parallel-axis theorem to find the rotational inertia: () ( ) ( ) 22 2 2 com 11 20 kg 0.10 m 20 kg 0.50 m 0.15 kg m . I I Mh MR Mh =+ = + = + = (b) Conservation of energy requires that Mgh I = 1 2 ω 2 , where is the angular speed of
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