A uniform disk of radius r = 250 mm is attached at Ato a 650–mm  rod ABof negligible mass...

A uniform disk of radius r = 250 mm is attached at Ato a 650–mm  rod ABof negligible mass which can rotate freely in a vertical plane about B.If the rod is displaced 2° from the position shown and released, determine the magnitude of the maximum velocity of point A. assuming that the disk (a)is free to rotate in a bearing at A, (b)is riveted to the rod at A.