Three equal masses m are placed at the three vertices of an equilateral triangle of side a. The gravitational force exerted by this system on another particle of mass m placed at the centroid of triangle

Options

A. `(Gm^2)/(3a^2)`
B. `(Gm^2)/a^2`
C. `(Gm^2)/(a^2)`
D. 0

Answer

D