A flywheel of mass 182 kilogram has an effective radius of 0.62 meter (suppose the mass is concentrated along a circumference placed at the effective radius of the flywheel).
(a) Determine how much work is done to bring this wheel from rest to a speed of 120 rpm in a time interval of 30.0 second?
(b) Determine the applied torque on the flywheel (assumed constant)?