1. The problem statement, all variables and given/known data Three charges A, B and C with charges respectively +3.2 x 10-6 C and -7.8 x 10-6 C are placed as seen in the diagram. What is the force on B because of A and C? 2. Relevant equations FE=kq1q2/r2 3. The attempt at a solution dAB = 2.5m dCB= 1.5m k= 9.0x109 Nm2/c2 FAB= kq1q2/r2 = (9.0x109)(3.2x10-6)(41.4x10-6)/(2.5)2 = 0.19 N FCB= kq1q2/r2 = (9.0x109)(-7.8x10-6)(41.4x10-6) = -1.29 N from here on, I'm not really sure what I am supposed to do.... any help would be aprreciated thanks!