law of universal gravitation on three objects

xvortx

1. The problem statement, all variables and given/known data
Three(3) 10kg spheres form a triangle with the first sphere being at the top, the second sphere being at the bottom right cornern and the third sphere being at the bottom left corner. All sides of the triangle are 1.0m. Calculate the net gravitational force on the 3rd sphere.


2. Relevant equations

F=G(m1*m2)/r2

To find the gravitational force between two objects you would obviously use the above formula. This one has got me stuck. This is my first post, by the way. I would appreciate any help because this one has got me stuck.

turin

You must add the force due to both of the other masses. Assume that they add linearly.