If a flywheel makes 120 rev/min,then its angular speed will be

A ball of mass 0.25kg attached to the end of a string of length 1.96m is moving in a horizontal circle. The string will break if the tension is more than 25 N. What is the maximum speed with which the ball can be moved?

A solid homogeneous sphere of mass M and radius R is moving on a rough horizontal surface, partly rolling and partly sliding. During this kind of motion of the sphere

The moment of inertia of a straight thin rod of mass M and length L about an axis perpendicular to its length and passing through its end is

A spherical solid ball of mass 1 kg and radius 3cm is rotating about an axis passing through its centre with an angular velocity of 50 rad s^-1. The kinetic energy of rotation is

The moment of inertia of a body about a given axis is 1.2kg-m². Initially, the body is at rest. In order to produce a rotational kinetic energy of 1500J, an angular acceleration of 25 rad/s² must be applied about that axis for a duration of 

A ring of mass m and radius r rotates about an axis passing through its centre and perpendicular to its plane with angular velocity ω. Its kinetic energy is

A solid sphere, disc and solid cylinder all of the same mass and made of the same material are allowed to roll down (from rest) on the inclined plane, then

Angular momentum is

The speed of a homogeneous solid sphere after rolling down an inclined plane of vertical height h from rest without sliding is