A particle of mass m is rotated in a circular path of radius r under the influence of a force `F = - k/r^2` .. where k is a constant. Find the total energy of the particle.

A particle is moving in a circular path of radius a under the action of an attraction potential U = - (k)/(2r^(2)) . Its total energy is

Define centripetal force.A particle of mass m is rotating around a circular path of radius r. Find the centripetal acceleration of the particle and the magnitude and direction of the centripetal force acting on it.

A particle of mass m is moving in a circular orbit of radius r in a force field given by vecF = -k/r^2 hatr . The angular momentum L of the particle about the centre varies as

A particle is moving in a circular path of radius r with constant speed. Due to change in the direction of motion of the particle continously, the velocity of the particle is changing . But the kinetic energy of the particle remains the same. Explain why ?