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## Homework Statement

A point charge q = +2.6 µC is placed at each corner of an equilateral triangle with sides 0.13 m in length.

What is the magnitude of the electric field at the midpoint of any of the three sides of the triangle?

## Homework Equations

E=(kq)/r^2

Fx=(F1+F2)cos

Fy=(F1+F2)sin

F=Fx+Fy

## The Attempt at a Solution

I first tried using the first equation, but I was pretty sure that I had to also use the other three equations, but I did not know how to properly solve for each of the F values. Am I supposed to use F=(kq1 q2)/r^2 ?