Physics

In a perfectly elastic collision, both momentum and kinetic energy are conserved. Let's solve this step by step for the given situation:

Given:

Mass of Ball A () = 5 kg

Initial velocity of Ball A () = 10 m/s

Mass of Ball B () = 10 kg

Initial velocity of Ball B () = 0 m/s (Ball B is initially at rest)

 

Use the formula for the final velocities of two objects in a perfectly elastic collision:

For two objects with masses and , and initial velocities and , the final velocities and after the collision:

According to Momentum and Kinetic Energy Conservation, we have

 

We can solve:

Click "Show Answer" to reveal the answer and analysis