A sphere of mass m_(1)collides with a sphere of mass m_(2) which is at rest. Prove that whatever be the initial direction of the first sphere, it will move off at right angles to the line of centres at the time of collision if the coefficient of restitution is m_(1)//m_(2).

A sphere of mass m_(1)collides with a sphere of mass m_(2) which is at

1.	A sphere of mass m_(1)collides with a sphere of mass m_(2) which is at rest. Prove that whatever be the initial direction of the first sphere, it will move off at right angles to the line of centres at the time of collision if the coefficient of restitution is m_(1)//m_(2).
Answer» ANSWER :N//a