The two stationary positive point charges, charge 1 of magnitude 3.85 nC and charge 2 of magnitude 2.00 nC, are separated by the distance of 58.0 cm. The electron is free from rest at the point midway among the two charges, and it moves all along the line joining the two charges.
Determine the speed v_final of the electron if it is 10.0 cm from charge 1?