PHYSICS · Single correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power
Problem
A ball of mass m1 moving with speed u along a straight, frictionless surface collides perfectly elastically and head-on with another ball of mass m2 that is initially at rest. Under which condition will the first ball reverse its direction of motion after the collision?
(a) m1>m2
(b) m1<m2
(c) m1=m2
(d) The direction of motion of the first ball after collision is independent of the mass ratio