The 50-kg flywheel has a radius of gyration about its center of mass of k0 = 250 mm. It...

The 50-kg flywheel has a radius of gyration about its center of mass of k₀ = 250 mm. It rotates with a constant angular velocity of 1200 rev/min before the brake is applied. If the coefficient of kinetic friction between the brake pad B and the wheel's rim is = 0.5, determine the constant force P that must be applied to the braking mechanism's handle in order to stop the wheel in 100 revolutions.