What happens to the relative velocity of two elastic bodies after a perfectly elastic collision?

69. What happens to the relative velocity of two elastic bodies after a perfectly elastic collision?

  1. It decreases
  2. It increases
  3. It remains constant
  4. It becomes zero

Answer

The correct answer is: D) It becomes zero

Explanation

After a perfectly elastic collision, the relative velocity of the two bodies becomes zero. This implies that the bodies move together after the collision.

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