Question

according to the law of conservation of momentum, the total momentum after a collision is dropdown the total momentum before a collision.

options in dropdown:
less than
more than
equal to
not related to

Explanation:

Step1: State conservation law

The Law of Conservation of Momentum states that the total momentum of an isolated system remains constant.

Step2: Relate before and after

Since momentum is conserved, the total momentum after a collision must equal the total momentum before.

$$P_{\text{initial}} = P_{\text{final}}$$

Answer:

equal to