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JEE PHYSICS MCQ: SYSTEM OF PARTICLES

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Two particles, which are initially at rest, move towards each other under the action of their internal attraction. If their speeds are vv and 2v2v at any instant, then the speed of the centre of mass of the system will be
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Correct option: D
Zero
Option D (Zero) is correct because, with no external forces acting on the system, the center of mass remains at rest.

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