A flywheel comprises a uniform circular disk with a mass of 105.0 kg and a radius of 1.0 m. It rotates with an angular velocity of 1227 rev/min. A constant tangential force is applied at a radial distance of 0.4 m. What is the initial kinetic energy of the wheel?
If the wheel is brought to rest in 121.0 s, what is the tangential force?