Question

the momentum of two bodies before and after collision remains the same. justify​

Answer 1

Answer:

The sum of momenta of the objects before the collision is equal to tbe sum of momenta after the collision. thus, there is no external unbalanced force acting on them. This law can be written as the total momentum of the two objects is unchanged or conserved by the collision.

Answer 2

Momentum, p = Mass, m × Velocity, v

If two objects having masses m1 and m2, and momenta m1 and m2, and velocities v1 and v2 collide with each other,

Then the momenta of their system remains the same, i.e. p1 + p2 is the same before and after the collision.

This is because the total energy in an isolated system remains constant. In other words, p1 + p2 remains the same because there is no external force acting on them.

Hope this helped!