The slotted circular disk whose mass is 6 kg has a radius of gyration about O of 175 mm The disk carries the four steel balls, each of mass 015 kg and located as shown, and rotates freely about a vertical axis through O with an angular speed of 120 revmin Each of the small balls is held in place by a latching device not shown If the balls are released while the disk is rotating and come to rest relative to the disk at the outer ends of the slots, compute the new angular velocity of the dis