What is the force F⃗ on the 1 nC charge at the bottom?

[joker2014]

Homework Statement

What is the force F on the 1.0 nC charge at the bottom in the figure? Give your answer in component form.

Homework Equations

F=q1q1/4piεr^2

The Attempt at a Solution

I got the answer 1*10^-5 N i, 2.2*10^-5 N j

however it keeps telling me Term 2: The correct answer does not depend on "j".

I tried removing j, still wrong. removed both i and j, still wrong.. i tried many things but still wrongg.

 

[Orodruin]

If you give us the details on how you were thinking when you arrived at your answer it will be easier for us to see where it went wrong and help you correct it.