Centre of Mass 1 Question 13
13. Two particles of mass and move towards each other under their mutual force of attraction. No other force acts on them. When the relative velocity of approach of the two particles is , their centre of mass has a velocity of . When the relative velocity of approach becomes , the velocity of the centre of mass is .
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Answer:
Correct Answer: 13.
Solution:
- Since, net force on the system is zero. Velocity of centre of mass will remain constant.