A 2 kg object moving at 4 m/s collides elastically with a 4 ...

To solve this problem, we use the conservation of momentum and conservation of kinetic energy as the collision is elastic.

Given:

Mass of object A:

Mass of object B:

Initial velocity of object A:

Initial velocity of object B:

Final velocity of object A: (unknown)

Final velocity of object B: (unknown)

Use the conservation of momentum.

The total momentum before the collision equals the total momentum after the collision:

Substitute the known values:

Use the conservation of kinetic energy.

The total kinetic energy before the collision equals the total kinetic energy after the collision:

Substitute the known values:

Physics