I've been working on this problem for a while but i am getting confused on vector directions.(adsbygoogle = window.adsbygoogle || []).push({});

Four point charges are arranged in a square with sides of 0.38m. Find the magnitude and direction of the force at each corner of the square.

Point 1=3nC Point 2= 19nC

Point 3= -6nC Point 4= -17nC

(this is what the square looks like)

I've been setting up the forces at each point using F=k q1*q2/ r^2 but im not sure i have the arrows in the right directions and how to calculate the force coming in from the diagonal!

PLEASE HELP!

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# Homework Help: Coulomb's Law, a square

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