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cobhc27
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Homework Statement
Consider the arrangement of point charges shown below. Calculate the net force on point charge 1 given the arrangement of the point charges and the separation of the charges.
1=2=3=e-
2=e+
r=0.4cm
=0.0004m
K=9x10^9
Fnet=?
Please use this link for an image of the "point charges shown below"
http://i277.photobucket.com/albums/kk71/cobhc_27/physics101.jpg
Homework Equations
Fnet=
Kq1q2
r^2
The Attempt at a Solution
Fnet=
Kq1q2
------
r^2
=
kq^2
-----
r^2
I assume you have to solve for 1 2 3 and 4 in this case, but I don't have a great idea on how to. From there, perhaps you add up each net force (but I don't know how to incorporate the 2d part). Any help given is greatly appreciated.