A solid cylindrical pulley of mass m and radius `R = 10 cm` is hinged about its horizontal axis of
Channel: Doubtnut
Date: 2020-01-26

A solid cylindrical pulley of mass m and radius `R = 10 cm` is hinged about its horizontal axis of symmetry. A light spring is wrapped around it, and small block of mass \'m\' is suspended from the string. Now the block is lefted vertically by a distance h = 1.8 m and released. Just after the string becomes taut again, find the angular velocity of the cylinder in rad/s (Take `g = 10 m//sec^(2)`)