The 12-lb disk A has a radius rA = 6 in. and an initial angular velocity ω0 = 750 rpm cloc...

The 12-lb disk A has a radius rA = 6 in. and an initial angular velocity ω0 = 750 rpm clockwise. The 30-lb disk B has a radius rB = 10 in and is at rest. A force P of magnitude 5 lb is then applied to bring the disks into contact. Knowing that µk = 0.25 between the disks and neglecting bearing friction, determine (a) the angular acceleration of each disk, (b) the final angular velocity of each disk.

Fig. P16.39