1. The problem statement, all variables and given/known data Given v = v=4.8×105m/s find the change in electric potential. 2. Relevant equations ΔV = Vf-Vi = -W/q 3. The attempt at a solution I really don't know any other formula that has the use of velocity to find ΔV. So how does velocity end up into the mix in finding ΔV?