1. A particle of mass ’m’ is moving in a circular path of radius ‘r’ with uniform speed ‘v’. The centripetal force acting on the particle is given by F = mv2/r.

This is a classic example of centripetal force. The centripetal force is the force that acts on a body moving in a circular path and is directed towards the center of the circle. The centripetal force is necessary to keep the body moving in a circular path, and it is equal to the mass of the body times its velocity squared divided by the radius of the circle.

  1. A body of mass ’m’ is moving with a constant speed ‘v’ in a circular path of radius ‘r’. The work done by the centripetal force on the body in one complete revolution is zero.

This is because the centripetal force is always perpendicular to the direction of motion of the body. Therefore, the work done by the centripetal force is equal to the force times the distance moved, which is zero.

  1. A body of mass ’m’ is moving with a constant speed ‘v’ in a circular path of radius ‘r’. The centri