The flywheel A has a mass of 30 kg and a radius of gyration of kC = 95 mm. Disk B has a...

The flywheel A has a mass of 30 kg and a radius of gyration of k_C = 95 mm. Disk B has a mass of 25 kg, is pinned at D, and is coupled to the flywheel using a belt which is subjected to a tension such that it does not slip at its contacting surfaces. If a motor supplies a counterclockwise torque or twist to the flywheel, having a magnitude of M = (12t) N • m, where it is in seconds, determine the angular velocity of the disk 3 s after the motor is turned on. Initially, the flywheel is at rest.