1. The problem statement, all variables and given/known data An electron starting from rest acquires 5.4keV of KE moving from point A to point B. 1. How much KE would a proton acquire, starting from rest at B and moving to point B. 2. Determine the ratio of their speeds at the end of their respective trajectories. 2. Relevant equations I am not for sure 3. The attempt at a solution I am sorry I don't even have an attempt because I don't even know where to begin. I am so confused on this one.