Kinetic energy

tica86
An electron is accelerated from rest through a potential difference 1200 V. Give the electron's kinetic energy after this acceleration in electron-volts?

----I know the answer is 1200 eV but if someone could explain how to get the answer?? And how do I apply 1/2mv^2=qV

$$[Volt] = \frac{[Joule]}{[Coulomb]}$$