As indicated in Examination Figure 5 a solid cylindrical diskis caused to rotate

As indicated in Examination Figure 5 a solid cylindrical diskis caused to rotate about a stationary axis which passes throughthe center of gravity of the disk. The force that produces rotationis applied to the rim of the disk by means of a cable which iswound around the disk and is attached to a body. The radius of thedisk is 2.5 ft the weight of the disk is 800 lb and the weight ofthe body is 300 lb. When the body is supported in the positionshown the body and the disk are at rest. If the support tor thebody is taken away the disk will rotate without friction while thebody moves downward under the action of its weight. The angularvelocity of the disk after the body has moved 5 tt from theposition shown would be A. 3. 70 rad per sec. B. 4.70 rad per sec.C. 5.70 rad per sec. D. 6.70 rad per sec I know the answer is notC i just dont understand this after going over it in the book..over and over.