Two point charges are located on the y-axis as follows: one charge q1 = -1.85nC located at y=-0.585m , and a second charge q2 = 3.10nC at the origin (y=0).
What is the magnitude of the total force exerted by these two charges on a third chargeq3 = 4.90nC located at y3 = -0.450m ?
what is the direction of the total force?