 #1
mousey
 9
 2
 Homework Statement:

Given the arrangement of charged particles in the figure below, find the net electrostatic force on the
q1 = 5.35µC charged particle. (Assume q2 = 14.33 µC and q3 = −18.12 µC. Express your answer in vector form.)
The three charges (q1, q2, and q3) are located at the following points:
q1: (2.00cm, 0cm)
q2: (1.00cm, 1.00cm)
q3: (0cm, 1.00cm)
I converted uC into C and cm into m, found the distance between q1 and q2 (r_12) and between q1 and q3 (r_13), and I know I have to compare q2 to q1 and q3 to q1. I can figure out the force just by plugging numbers into Coulomb's law, but I'm not sure how to calculate the vector components.
Thank you!
 Relevant Equations:

F =(k{q_1}(q_2))\ d^{2)
(Coulomb's Law)
I tried just calculating the force with Coulomb's law, then calculating the forces for each vector individually and adding, but I got it wrong both ways