Three identical solid spheres, each of mass m. - 2.0 kg, are fixed at the vertices of an equilateral triangle of side length d = 50 cm, as shown in the diagram. The magnitude of the force of gravity experienced by each sphere, due to the other two is equal to /1 mark a. 1.8 10- N O b. 2.1 10-9 N 0 c. 1.1 10-9 N d. 3.7 10-9 N e. zero. Copyright