A simple friction drive consists of two disks A and B, respectively with diameters 6 cm and 10 cm.
Initially, disk A has a clockwise angular velocity of 500 rpm and disk B is at rest. It is known that disk
A will coast to rest in 60 s. However, rather than waiting until both disks are at rest to bring them together, disk B is given a constant angular acceleration of 2.5 rad/s2 counter clockwise. Determine
a) at what time the disks can be brought together if they are not to slip,
b) the angular velocity of each disk as contact is made.