My update is that , for the first case the resultant force = 0 = F3/4 - 2(F1/4)sin30 =
F3/4 - F1/4 = 0. ?!
The system is in equilibrium.
Any help will be greatly appreciated
Homework Statement
Given three equal(1,2,3) (negative) charged particles , forming a circle ; and a charged particle on the center of the circle(#4).
360/3 = 120 . The angle between the charged particles are 120 degrees.
Homework Equations
1) First Case : Find the resultant force...