A massless string is wrapped around a disc of mass M and radius R. Another end is tied
Let the tension in the string be T.
A bob of mass m is tied by a massless string whose other end portion is wound on a fly wheel (disc) of radius r and mass m. When released from the rest, the bob starts falling vertically. When it has covered a distance h, the angular speed of the wheel will be:
A solid uniform cylinder of mass M and radius R is pivoted at its centre free to rotate about horizontal axis. A massless inextensible string is wrapped around it, and attached to a block of mass m which is initially at a height h above the floor. The acceleration due to gravity is g, directed downward. The block is released from rest. By what total angle θ does it rotate (in radians)?
A bob of mass m is tied by a massless string whose other end portion is wound on a fly wheel (disc) of radius r and mass m. When released from the rest, the bob starts falling vertically. When it has covered a distance h, the angular speed of the wheel will be: