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Force on a charge from a line of uniform charge density

1. The problem statement, all variables and given/known data
Write an equation in vector component form for the force when a point charge q0 is located a distance d from a vertical rod of uniform charge density Q and length L on the 45o line that bisects the positive x and y axes.

basically if you can picture a rod going vertically on the z axis, then halfway down the rod and a distance d away is a point that i need to find the force on


2. Relevant equations
dF=1/(4[tex]\pi[/tex][tex]\epsilon[/tex]0) x q0dq/r2
note that these equations are supposed to look like 4 x pi x epsilon 0, not for raised to that power

3. The attempt at a solution
I have determined that the force were the charge to be locate on the y axis would be
Fy=1/(4[tex]\pi[/tex][tex]\epsilon[/tex]0) x q0q/(y x (y2 + L2/4)1/2)
 

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