Question

rimmed flywheel better than solid flywheel .Why?

Answer 1

because they weighs lesser and work equally efficiently

Answer 2

Flywheel are used to store rotational kinetic energy which is given by 1/2 *I *W^2 (W= angular velocity) as it is clear from the relation that higher the mass moment of inertia greater is its ke..now if u are comparing the moment of inertia for the same mass of disc and rim than it may be claculated that its valve for rim is greater than disc as in rim more mass is distributed away from the axis of rotation… HOPE THIS HELPS IF HELPS PLEASE MARK IT AS BRANLIEST