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JEE PHYSICS MCQ: SYSTEM OF PARTICLES

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Two particles move towards each other from rest under a mutual force of attraction. At the instant, when the speed of A is V, the speed of B is V/2. The speed of centre of mass of the system is

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Correct option: D

zero

Option D (zero) is correct because, in the absence of external forces, the velocity of the center of mass remains constant. Since the particles start from rest, the initial velocity of the center of mass is zero, and it remains zero.

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