Recent content by Aladdin010

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...