R18–2. The 50-kg flywheel has a radius of gyration of
k0 = 200 mm about its center of mass. If it is subjected to a torque of M = (9u1>2 + 1) N # m, where u is in radians,
determine its angular velocity when it has rotated 5 revolutions, starting from rest.
M = (9 u1/2 + 1) N·m