What is the Net Force on Charges in a Square?

AI Thread Summary
The discussion revolves around calculating the net force on charges arranged in a square configuration. The key equation used is F=Kq1q2/r^2, which helps in determining the forces between the charges. One participant selected option E, which states that there is no net force on the charge, but expressed uncertainty about this choice. Others in the thread discuss the need for a more quantitative approach to understand the vector sums involved. Ultimately, the participant confirmed their answer by substituting variables into the equations, reinforcing their conclusion.
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Homework Statement



https://img.skitch.com/20120425-x1ekh2xqk9j61xqk83uyspaf75.jpg

Homework Equations



F=Kq1q2/r^2
E=kQ/r^2

The Attempt at a Solution



Answer choice E is not listed in screenshot, but states that there is no Net force on the Charge. I picked E, but I'm second-guessing myself.
 
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What made you choose E? Are there other options that seem plausible to you which make you second guess yourself?
 
Well, I guess I was hoping for a more quantitative way of understanding the vector sums in this equation, without having supplied values.
 
Ultimately I just plugged in some variables and my answer held up.
 
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