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NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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Three identical balls A,B and C are lying on a horizontal frictionless table as shown in figure. If ball A is imparted a velocity v towards B and C and the collisions are perfectly elastic, then finally

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Correct option: B

Ball A and B are a rest and ball C roll out with speed v

Option B (Ball A and B are a rest and ball C roll out with speed v) is correct because, in a perfectly elastic collision with identical masses in a line, momentum and energy transfer completely to the last ball.

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