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Manipal MET2018PhysicsCenter of Mass, Momentum and Collision

The bob A of a simple pendulum is released when the string makes an angle of 45^ with the vertical. It hits an other bob B of the same material and same mass kept at rest on the table. If the collision is elastic

Options

  1. Aboth A and B rise to the same height
  2. Bboth A and B come to rest at B
  3. Cboth A and B move with the same velocity of A
  4. DA comes to rest and B moves with the velocity of A

Correct answer

D. A comes to rest and B moves with the velocity of A

Step-by-step solution

Since, colljision is elastic hence, velocities of bobs A and B get interchanged. Thus, A will come to rest and B will move with the velocity of A .

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