Three solid spheres each of mass 1 kg and radius 2m are arranged at the three corners of an equilateral triangle of side 10m, such that centres of the spheres coincide with the corners of the triangle. When they are release form that position, the speed of any one sphere at the time of collision would be (G is universal gravitation).

Options

A. `sqrt((3G)/10)`
B. `sqrt((10G)/10)`
C. `sqrt(30G)`
D. `sqrt(3G)`

Answer

A