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Two stationary positive point charges, charge 1 of magnitude 3.20 nano-coulomb and charge 2 of magnitude 1.80 nano-coulomb , are separated by a distance of 47.0 cm . An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges. What is the speed (V final) of the electron when it is 10.0 cm from charge 1?
Calculate the potential energy when it is in the center, then calculate the potential energy when it is 10 cm from charge 1
The difference in potential energy is going to be the kinetic energy.