Question

The total momentum of two marbles before a collision is 0.06kg•m/s. No outside forces act on the marbless. What is the total momentum of the marbles after the collision?

Answer 1

It will be same as 0.06kg.m/s :

Total momentum before collision = Total momentum after collision

Answer 2

The law of momentum conservation can be stated as follows. For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.