Three charges, $q_1 = +q$, $q_2 = -q$, and $q_3 = +q$, are at the vertices of an equilateral triangle, as shown in the figure. (Figure 1)
Give the direction angle, $\theta$, of the net electric force experienced by charge 1. Note that $\theta$ is measured counterclockwise from the positive $x$ axis.
Repeat part B for charge 2.