Two Pool Balls,each Moving at 2 M/s,roll Toward Each Other

question 63

Multiple Choice

Two pool balls,each moving at 2 m/s,roll toward each other and collide.Suppose after bouncing apart,each moves at 4 m/s.This collision violates conservation of

• A)momentum.
• B)energy.
• C)both momentum and energy.
• D)none of the above choices