JEE · NEET Previous Year Question
Two particles which are initially at rest, move towards each other under the action of their internal attraction. If their speeds are v and 2v at any instant, then the speed of centre of mass of the system will be
Topic: NEET PYQ
Answer: B. Full step-by-step solution below.
- A2v
- Bzero
- C1.5 v
- Dv
Correct answer: B
Solution
(b)As no external force is acting on the system, the centre of mass must be at rest i.e. vCM = 0.More Centre of Mass & Momentum PYQs
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