A highly elastic ball moving at a speed of 3 m/s approaches a wall moving towards it with a speed of 3 m/s. After the collision, the speed of the ball will be

a) |
3 m/s |
b) |
6 m/s |
c) |
9 m/s |
d) |
Zero |

A highly elastic ball moving at a speed of 3 m/s approaches a wall moving towards it with a speed of 3 m/s. After the collision, the speed of the ball will be

a) |
3 m/s |
b) |
6 m/s |
c) |
9 m/s |
d) |
Zero |

1 Answer - 5876 Votes

3537

For elastic collision, Let speed of the ball be towards left after collision, then w.r.t. wall, incident velocity = reflected velocity. We get |