a revolving car wheel has a radius of 15m and a mass of 3 X 10^4 kg. assuming that all of the wheel's mass is uniformly distributed along the circumfrance of the wheel and the wheel completes 2 revolutions per minute.
a) what torque needs to be applied to stop the car wheel in 15 sec?
b) what tangential force is placed on the wheel to give it such torque?