Question

state the law/principal of conservation of momentum.Give example​

Answer 1

Answer:

Explanation:

Two bodies of mass M and m are moving in opposite directions with the velocities v. If they collide and move together after the collision, we have to find the velocity of the system.

Since there is no external force acting on the system of two bodies, momentum will be conserved.

Initial momentum = Final momentum

(Mv – mv) = (M+m)VFinal

From this equation, we can easily find the final velocity of the system

Answer 2

Answer:

Recoil of gun

Explanation:

If a bullet is fired from a gun, both the bullet and gun are initially at rest.