A uniform disc of radius R and mass m lies on a smooth

Last updated: 6/27/2023

A uniform disc of radius R and mass m lies on a smooth horizontal plane A ring of mass 2m and radius R 2 spinning with angular velocity wo is carefully lowered onto the disc such that centre of disc and centre of the ring coincide The coefficient of friction between them is Then which of the following is INCORRECT A The time when both disc and ring spin with the same angular velocity is R R B The time when both disc and ring spin with the same angular velocity is 2 g C The final angular velocity of disc becomes D The final angular velocity of ring becomes o 2 4 g 2