Aparticle has a charge of +1.5 µc and moves from point a to point b, a distance of 0.15 m. the particle experiences a constant electric force, and its motion is along the line of action of the force. the difference between the particle's electric potential energy at a and b is epea - epeb = +9.0 10-4 j.
(a) find the magnitude and direction of the electric force that acts on the particle. the direction of motion (along, against, perpendicular)
(b) find the magnitude and direction of the electric field that the particle experiences. /c the direction of motion (along, against, perpendicular)