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Three particles, each of mass m, are sit...

Three particles, each of mass m, are situated at the vertices of equilateral triangle of side length a. The only forces. It is desired that each particle moves in a circle while maintaining the original mutual speration a. Find the intial velocity that should be given to each particle and also the time period of the circular motion.

A

`sqrt((GM)/(2l))`

B

`sqrt((GM)/(l))`

C

`sqrt((2GM)/(l))`

D

`sqrt((GM)/(3l))`

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