How can you solve an electric force problem with vectors?

AI Thread Summary
To solve an electric force problem using vectors, begin by drawing vectors that represent the forces exerted on the charge q0 by other charges. Use Coulomb's law, f = k*q1*q2/r^2, to calculate the magnitude of each force. The next step involves determining the direction of these forces based on the charges' signs. The vector sum of all forces acting on q0 must equal zero for equilibrium. This approach will guide you in solving the problem effectively.
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Homework Statement



http://imageshack.us/a/img145/3799/img0302ok.jpg

Homework Equations



f=k*q1q2/r^2

The Attempt at a Solution


i just don't know how to start i just need a hint and i will do the rest
 
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Draw vectors representing the individual forces the other charges exerte on qo. The vector sum of these vectors has to be zero.

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