Question

Momentum of system after collision and momentum before collision are​

Answer 1

Answer:

Since the total system momentum before the collision is the same as it is after the collision, the total momentum of the system can be considered to be conserved. As such, there is no net external impulse upon the system. It is considered isolated.

Explanation:

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Answer 2

Answer:

both is same if the collision is elastic.

and some momentum loss if it isninelastic

and momentum will zero after collision if perfectly inelastic