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.

Options

A. `sqrt((GM)/(a)[(1 + 2sqrt(2))/(3)])`
B. `sqrt((3GM)/(a)[(1 + 2sqrt(2))/(2sqrt(2))])`
C. `sqrt((GM)/(a)[(1 + 2sqrt(2))/(2sqrt(2))])`
D. None

Answer

C