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## Homework Statement

Suppose that the magnitude of the net electrostatic force exerted on the point charge q2 in the figure is 0.65 N . (Figure 1) http://imgur.com/4lZliPq

Find the distance D.

q1 = 2.1 micro C

q2 = 6.3 micro C

q3 = -.89 micro C

## Homework Equations

F = k |q1| |q2| / r^2

k = 8.99 E9

## The Attempt at a Solution

Normally for this problem I'd try to find the different forces that affect each other but for this problem there is 2 unknowns and I'm not sure how to use the net force of q2 to find the distance.

Fx 1 on 2 = K|q1||q2|(cos 60) / d^2 =

Fy 1 on 2 = K|q1||q2|sin60 / d^2=

Not really sure where to go with this problem :( any help would be appreciated