A wheel on a game show is given an initial angular speed of 1.22 rad/s. It comes to rest after rotating through 3/4 of a turn.
(a) Determine the average torque exerted on the wheel given that it is a disk of radius 0.66 meter and mass 6.4 kilogram.
N•m
(b) If the mass of the wheel is halved and its radius is doubled, will the angle through which it rotates before coming to rest increase, decrease, or stay the same?
increase
decrease
stay the same