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Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the balls with velocity ‘v’ is made to strike the second ball. Both the balls after impact will move with a velocity
- Av
- Bv/2
- Cv/4
- Dv/8
Answer not set
Discussion 1
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CCommunity
Collision is perfectly elastic and it is given that both ball after collision move with a same velocity.
Applying momentum conservation,
Momentum before collision = momentum after collision
m × (v + 0) = m × Vnew + m × Vnew
mv = 2 (m × Vnew)
Vnew = v/2
Applying momentum conservation,
Momentum before collision = momentum after collision
m × (v + 0) = m × Vnew + m × Vnew
mv = 2 (m × Vnew)
Vnew = v/2