A 1.0 kg white ball moving to the right at 5.0m/s has an elastic head on collisi

Question

A 1.0 kg white ball moving to the right at 5.0m/s has an elastic head on collision with a6.0kg black ball initially at rest
1. Velocity of white ball after clision 2. Velocity of black ball after collision 3. The momentum of the black ba after collision A 1.0 kg white ball moving to the right at 5.0m/s has an elastic head on collision with a6.0kg black ball initially at rest
1. Velocity of white ball after clision 2. Velocity of black ball after collision 3. The momentum of the black ba after collision
1. Velocity of white ball after clision 2. Velocity of black ball after collision 3. The momentum of the black ba after collision

Explanation / Answer

From conservation of momentum, 1*5=1*v1+6*v2

and collision is elastic, =>5=v2-v1=>v1=-25/7m/s, v2=10/7m/s

1. Velocity of white ball after collision = -25/7 m/s

2. Velocity of black ball after collision = 10/7 m/s

The momentum of the black ball after collision = 60/7 N-s

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