A homogeneous disk with a radius of 9 in. is welded to a rod with a length of 18 in. and of negligib

Описание: A homogeneous disk with a radius of 9 in. is welded to a rod with a length of 18 in. and of negligible weight that is connected by a clevis to a vertical shaft . The rod and disk can rotate freely about a horizontal axis , and shaft can rotate freely about a vertical axis. Initially, is horizontal and has no angular velocity about . Knowing that the smallest value of in the ensuing motion is determine the initial angular velocity of shaft its maximum angular velocity.