Three equal masses .m. are placed at the three vertices of an equilateral triangle of side a. Find the gravitational force exerted by this system on another particle of mass ‘m. placed a) at the mid point of a side and (b) at the centroid of the triangle.

Three equal masses .m. are placed at the three vertices of an equilate

1.	Three equal masses .m. are placed at the three vertices of an equilateral triangle of side a. Find the gravitational force exerted by this system on another particle of mass ‘m. placed a) at the mid point of a side and (b) at the centroid of the triangle.
Answer» SOLUTION :`a) 4Gm^2 // 3a^2 , B) 0`