Question

prove with help of third law that the momentum of two body is conserved during collision provides no external force acts ​

Answer 1

Answer:

For this reason we say that the total momentum of the objects is conserved. Newton's third law implies that the total momentum of a system of interacting objects that are not acted on by outside forces is conserved. The total momentum in the universe is conserved. ... Kinetic energy is only conserved in elastic collisions.