Rework Prob. 7/140 if , instead of being constant at 20, is increasing at the steady rate

Rework Prob. 7/140 if β, instead of being constant at 20°, is increasing at the steady rate of 120 rev/min. Find the angular momentum H_O of the disk for the instant when β = 20°. Also compute the kinetic energy T of the disk. Is T dependent on β?

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N -y 10" 4" Problem 7/140