Exercise: Three charged particles with q1=-50nC, q2=+50nC, and q3=+30nC are placed on the corners of the 5.0cm x 10.0cm rectangle. What is the net force on charge q3 due to other two charges? Give your answer both in component form and as a magnitude and direction.
Note: In the solution with GeoGebra you can change the distance between particles with slider r (move it left and right to obtain different values for the distances). "Read" the value of forces for different values of distances.