**1. The problem statement, all variables and given/known data**

Three point charges lie along a straight line as shown in the figure below, where

q1 = 6.36 µC, q2 = 1.57 µC and q3 = −1.82 µC.

The separation distances are d1 = 3.00 cm and d2 = 2.00 cm.

Calculate the magnitude and direction of the net electric force on each of the charges.

**2. Relevant equations**

**3. The attempt at a solution**

I think I have to use vectors but I don’t know how…

http://ift.tt/1gEYq0Y