Physics

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

 

Given:

Mass of ball A:

Mass of ball B:

Initial velocity of ball A:

Initial velocity of ball B:

Final velocity of ball A: (unknown)

Final velocity of ball 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:

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