1.

Foure particles each of mass m placed at foure corner of a square of edge .a. move with speed V along a circle which circumscribe the square under the influence of mutual gravitational force find V.

Answer»

`SQRT((GM)/(a)[(1 + 2sqrt(2))/(3)])`
`sqrt((3GM)/(a)[(1 + 2sqrt(2))/(2sqrt(2))])`
`sqrt((GM)/(a)[(1 + 2sqrt(2))/(2sqrt(2))])`
None

Answer :C


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