Rotational Motion and Torque 1. A force of 200 N acts tangentially on the rim of a wheel 25 cm in radius. Find the magnitude of the torque. Repeat if the force makes an angle of 40" to a spoke of the wheel. 2. A 500-g wheel that has a moment of inertia of 0.015 kgm is initially turning at 30 rev/s. It coasts to rest after 163 rev. How large is the torque that slowed it