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

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 HO of the disk for the instant when β = 20°. Also compute the kinetic energy T of the disk. Is T dependent on β?