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Electric force problem

  • Thread starter ASiCaRiO
  • Start date
  • #1
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Homework Statement



http://imageshack.us/a/img145/3799/img0302ok.jpg [Broken]

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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Answers and Replies

  • #2
ehild
Homework Helper
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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.

ehild
 
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