Three equal masses m are placed at the three corners of an equilateral tringle of side a. find the force exerted by this sytem on another particle of mass m placed at a. the mid point of a side b. at the centre of the triangle.

Three equal masses m are placed at the three corners of an equilateral triangle of side a. find the force exerted by this system on another particle of mass m placed at (a) the mid point of a side (b) at the center of the triangle.

Three equal masses m are placed at the three corners of an equilateral triangle of side a. find the force exerted by this system on another particle of mass m placed at (a) the mid point of a side (b) at the center of the triangle.

Three equal masses m are placed at the three corners of an equilateral triangle of side a. The force exerted by this system on another particle of mass m placed at the mid-point of a side.

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 mid point of a side