Question

1. A charge q1=-3.00nC is placed at the origin of an xy-coordinate system, and a charge q2=2.00nC is placed on the positive y-axis at y=4.00cm. If a third charge q3=4.00 nC is now placed at the point x=3.00 cm, y=4.00 cm, find the x and the y components of the total force exerted on this charge by the other two.

2. An amount of positive charge Q is distributed uniformly along the positive y-axis between y=0 and y=a. A negative point charge -q lies on the positive x-axis, a distance r from the origin. Derive the x- and y components of the force that the charge distribution Q exerts on q.

2. accompanied image

Answer 1