Physics

To determine the total momentum after the collision, we use the principle of conservation of momentum. In an elastic collision, momentum is conserved, meaning the total momentum before the collision equals the total momentum after the collision.

Given:

Mass of Ball A () = 3 kg

Initial velocity of Ball A () = 8 m/s

Mass of Ball B () = 2 kg

Initial velocity of Ball B () = -4 m/s

Calculate the total momentum before the collision.

The total momentum before the collision is the sum of the momenta of both balls:

Substitute the given values: