Hi, the problem states the following. "Charge q2 is in static equilibrium. What is q1?"(adsbygoogle = window.adsbygoogle || []).push({});

I've attached the image of the problem I'm working on. From the looks of this it should be quick and simple it seems, but I am having a tough time with it. I would appreciate any help you can offer.

With q2 being in static eq., I thought that meant that all forces on q2 sum to zero, so I tried to add the forces from q1 and the center charge up and set equal to zero and solve for q1, but I'm not sure if this is right. Also, I put in the assumption that q1 and q2 are equal and I don't know if that is true, either.

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# Homework Help: Need help using Coulomb's Law to find unkown charge

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