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Standard XII

Physics

Velocity of COM

Two particles...

Question

Two particles A and B initially at rest, move towards each other under a mutual force of attraction. At the instant when the speed of A is v and speed of B is 2v, the speed of centre of mass of the system is :

zero

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1.5 v

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3 v

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Solution

The correct option is A zero
Under mutual force of attraction, the centre of mass will be at rest position.

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Two particles A and B initially at rest, move towards each other under a mutual force of attraction. At the instant when the speed of A is v and speed of B is 2v, the speed of centre of mass of the system is :

The correct option is A zeroUnder mutual force of attraction, the centre of mass will be at rest position.

The correct option is A zero
Under mutual force of attraction, the centre of mass will be at rest position.