A 14.0-kg solid homogeneous disk of radius 0.600 m is

Last updated: 7/30/2022

A 14.0-kg solid homogeneous disk of radius 0.600 m is rotating with an initial angular speed of 50.0 rad/s about a frictionless horizontal shaft. A 6.00-kg solid homogeneous disk of radius 0.400 m is initially at rest on the same shaft. The disks are pushed into contact, as shown. Because of surface friction, the two disks eventually attain a final common angular speed 404. (a) Find the final common angular speed wy of the system. (b) In the collision of the two disks, kinetic energy is not conserved because nonconservative (frictional) internal forces act during the contact. How much energy was lost to friction in the collision?