ch10-p059 - 59. The initial angular speed is = (280...

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59. The initial angular speed is ω = (280 rev/min)(2 π /60) = 29.3 rad/s. (a) Since the rotational inertia is (Table 10-2(a)) 22 (32 kg)(1.2 m) 46.1 kg m I == , the work done is 2 11 0 (46.1kg m )(29.3 rad/s)
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