A spinning flywheel has rotational inertia

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A spinning flywheel has rotational inertia I = 417 kg·m2. Its angular velocity decreases from 19.5 rad/s to zero in 320 s due to friction. What is the frictional torque acting? Take positive to be "with the flywheel's rotation", and negative to be "opposite the flywheel's rotation" 

Reference no: EM13544771

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