Three identical point charges A, B, and C are located in the shape of an equilateral triangle with sides of length 15 cm. What is the net force on B if each charge has a magnitude of -5.0 x 10-3 C?
coulombs law equation
The Attempt at a Solution
(please see the attached scanned page and attached diagram)
I think that i am doing something wrong the angle...hope you guys can help.