Question

A 1 kg ball moving at 12 ms-1 collides with a 2 kg ball moving in opposite direction at 24 ms-1. If the coefficient of restitution is $\frac{2}{3}$, then the velocities after the collision are

• A. -4 ms-1, - 28 ms-1
• B. -28 ms-1, -4 ms-1
• C. 4 ms-1, 28 ms-1
• D. 28 ms-1, 4 ms-1

Answer 1

Answer: (B)

-28 ms-1, -4 ms-1

Answer 2

The correct answer is (B) : -28 ms-1, -4 ms-1.