If a sphere of mass `m` moving with velocity `u` collides with another identical sphere at rest on a frictionless surface, then which of the following is correct ?

A sphere of mass m moving with a uniform velocity v hits another identical sphere at rest. If the coefficient of restitution is e, the ratio of the velocities of the two sphere after the collision is (e-1)/(e+1) .

A sphere of mass m moving with constant velocity u , collides with another stationary sphere of same mass. If e is the coefficient of restitution, the ratio of the final velocities of the first and second sphere is

A body of mass 'm' moving with certain velocity collides with another identical body at rest. If the collision is perfectly elastic and after the collision both the bodies moves

A body of mass 'm' moving with certain velocity collides with another identical body at rest. If the collision is perfectly elastic and after the collision both the bodies moves

A sphere P of mass m moving with velocity u collides head on with another sphere Q of mass m which is at rest . The ratio of final velocity of Q to initial velocity of P is ( e = coefficient of restitution )

A sphere P of mass m moving with velocity u collides head on with another sphere Q of mass m which is at rest . The ratio of final velocity of Q to initial velocity of P is ( e = coefficient of restitution )

A sphere of mass m moving with velocity v collides head-on with another sphere of the same mass at rest. If the coefficient of resistitution e = 1//2 , then what is the ratio of final velocity of the second sphere to the intial velocity of the first sphere ?

A sphere of mass m moving with velocity v collides head-on with another sphere of the same mass at rest. If the coefficient of resistitution e = 1//2 , then what is the ratio of final velocity of the second sphere to the intial velocity of the first sphere ?

A sphere of mass m moves with a velocity 2v and collides inelastically with another identical sphere of mass m. After collision the first mass moves with velocity v in a direction perpendicular to the initial direction of motion . Find the speed of the second sphere after collision .