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

Both A and B rise to the same height
Both A and B come to rest at B
Both A and B move with the same velocity of A
A comes to rest and B moves with the velocity of A

detailed solution

Correct option is D

Due to the same mass of A and B as well as due to elastic collision velocities of spheres get interchanged after the collision.

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