A ring and a disc of same mass `m` and same radius `R` are joinged concentrically.
Channel: Doubtnut
Date: 26/01/2020

A ring and a disc of same mass `m` and same radius `R` are joinged concentrically. This system is placed on a smooth plane with the common axis parallel to the plane as shown in figure. A horizontal force `F` is applied on the system at a point which is at a distance `x` from the centre. The value of `x` so that it starts pure rolling is