12.49. Model: The disk is a rotating rigid body. Visualize:Please refer to Figure EX12.49. Solve:From Table 12.2, the moment of inertial of the disk about its center is 224211(2.0 kg)(0.020 m)4.0 10 kg mIMR−===×The angular velocity ωis 600 rpm600 2 /60 rad/s20 rad/s.π=×=Thus,
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