Two stationary positive point charges, charge 1 of magnitude 3.15nC and charge 2 of magnitude 1.75nC , are separated by a distance of 55.0cm. 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 of the electron when it is 10.0cm from charge 1? (answer in m/s)