Question

Which of the following statements about the conservation of momentum is not correct? Momentum is conserved for a system of objects pushing away from each other. The total momentum of a system of interacting objects remains constant regardless of forces between the objects. Momentum is conserved when two or more interacting objects push away from each other. Momentum is not conserved for a system of objects in a head-on collision.

Answer 1

Answer:

wrong statement :  Momentum is not conserved for a system of objects in a head-on collision.

Explanation:

In a head on collision of two objects , two equal and opposite forces are created at the point of collision . These two forces create two impulses in opposite direction which results in equal and opposite changes in momentum in each of them . Hence net change in momentum is zero. In this way momentum is conserved in head on collision of two objects.