There are two cylinders of radii
R1andR2 having moments of inertia
I1andI2 about their respective axes as shown in the figure. Initially, the cylinders rotate about their axes with angular speed
α1 and
α2 as shown in the figure. The cylinders are moved closed to touch each other keeping the axes parallel. The cylinders first slip over each other at the contact but the slipping finally ceases due to the friction between them. Calculate the angular speeds of the cylinders after the slipping ceases.