Section: Solid Mechanics | Marks: 1
A ball of mass 5m approaches a stationary ball of mass m with a horizontal velocity of 2 m/s from left to right. After a perfectly elastic central collision, the horizontal velocity of the heavier ball is 1 m/s from left to right. Which one of the following statements, regarding the velocity (in m/s) of the lighter ball after impact, is TRUE?
- A. Comes to rest
- B. Moves from left to right at 5 m/s
- C. Moves from right to left at 5 m/s
- D. Moves from left to right at 1m/s
Answer: B. Moves from left to right at 5 m/s