A solid flywheel of 20 kg mass and 120 mm radius revolves at `600 "revmin"^(-1)`. With
Channel: Doubtnut
Date: 2021-11-08

A solid flywheel of 20 kg mass and 120 mm radius revolves at `600 "revmin"^(-1)`. With what force must a brake lining be pressed against it for the flywheel to stop in 3s, if the coefficient of friction is 0.1 ?