A hollow, thin-walled sphere of mass 12.0 kg and diameter
Chapter 10, Problem 10.39(choose chapter or problem)
A hollow, thin-walled sphere of mass 12.0 kg and diameter 48.0 cm is rotating about an axle through its center. The angle (in radians) through which it turns as a function of time (in seconds) is given by u1t2 = At2 + Bt4 , where A has numerical value 1.50 and B has numerical value 1.10. (a) What are the units of the constants A and B? (b) At the time 3.00 s, find (i) the angular momentum of the sphere and (ii) the net torque on the sphere.
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