Question

State the law of conservation of momentum and explain any two
applications of conservation of momentum.​

Answer 1

Answer:

For two or more bodies in an isolated system acting upon each other, their total momentum remains constant unless an external force is applied. Therefore, momentum can neither be created nor destroyed. The law of conservation of momentum is an important consequence of Newton's third law of motion.

Answer 2

Answer:

The law of conservation of momentum says that the momentum of a closed system is constant in time (conserved). A closed (or isolated) system is defined to be one for which the mass remains constant, and the net external force is zero