A ball .A. of mass .m. moving along positive x-direction with kinetic energy .K. and momentum P undergoes elastic head on collision with a stationary ball B of mass .M. . After collision the ball A moves along negative X-direction with kinetic energy K/9 Final momentum of B is

A ball .A. of mass .m. moving along positive x-direction with kinetic

1.	A ball .A. of mass .m. moving along positive x-direction with kinetic energy .K. and momentum P undergoes elastic head on collision with a stationary ball B of mass .M. . After collision the ball A moves along negative X-direction with kinetic energy K/9 Final momentum of B is
Answer» <P>P `P/3` `(4P)/3` 0.66666666666667 Answer :C