a 20 kg sphere is at the origin and a 10 kg sphere is at (x,y) = (20,0

1. The problem statement, all variables and given/known data

a 20 kg sphere is at the origin and a 10 kg sphere is at (x,y) = (20,0). at what point or points could you place a small mass such that the net gravitational force on it due to the spheres is zero?

2. Relevant equations

g=GM/r^2

3. The attempt at a solution

Can not figure out how to plug into the equation

http://ift.tt/1hrMpXS

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