In the figure below, three 2.00 kg spheres are located at distances d1 = 0.300 m and d2 = 0.400 m. What are the magnitude and direction of the net gravitational force on sphere B due to spheres A and C?
F = GMm/r^2
The Attempt at a Solution
F=sqrt((4G/0.4^2)^2 + (4G/0.3^2)^2)
F = 3.0E-9
But that answer is wrong. Is there a mistake in my arithmetic? Of am i missing another term?