A yo-yo [see Fig (a)] is constructed from two identical uniform disks of radii R and mass M They are held together by a massless cylindrical spindle [hub of smaller radius Ro. The yo-yo is wound with very thin, massless string. 0- The yo-yo is released from rest and falls/unwinds for a distance of h
(a) What is angular acceleration during the descent?
(b) What is the tension on the string during the descent?
(c) How long does it take to descend to the distance h?