Two identical balls A and B moving with velocities +0.5

Home » Mechanics » Work, Energy and Power » Question

Two identical balls A and B moving with velocities +0.5 m/s and –0.3 m/s respectively, collide head on elastically. The velocities of the balls A and B after collision, will be, respectively

1. +0.5 m/s and +0.3 m/s
2. – 0.3 m/s and +0.5 m/s
3. +0.3 m/s and 0.5 m/s
4. –0.5 m/s and +0.3 m/s

Correct Option: B

When the identical balls collide head-on, their velocities are exchanged.