A ball with an initial momentum 'P' collides normally with a rigid wall. If P_(1) is the linear momentum after the perfectly elastic collision ,………….

A ball with an initial momentum 'P' collides normally with a rigid wal

1.	A ball with an initial momentum 'P' collides normally with a rigid wall. If P_(1) is the linear momentum after the perfectly elastic collision ,………….
Answer» <P>`P_(1) = P` `P_(1) = -P` `P_(1) = -2P` `P_(1) = 2P` SOLUTION :`P_1 = -2P`