On the traditional lathe, the motor applies the indicated moment to pulley A for 10 seconds. Assume the 4" pulleys are solid disks of 10lb and the 1" pulleys are solid disks of 0.5lb each. Pulleys B and C are compounded, pulley D drives the light spindle. Determine the angular velocity of the spindle at 10 seconds. Do not consider the relatively light belts.