I have a question about the behavior of a charged particle being accelerated in an electric field. I know that it is possible to find the approximate final velocity of the particle (assuming it doesn't reach too great a fraction of the speed of light) simply by an energy balance, [tex]1/2mv^2 = qV[/tex]. However, I'm interested in learning how to find the "time in flight" of an electron in the same potential field, and I don't think I can use the above equation to find it out because I need the average velocity, not the final velocity. Particularly I'm interested in the case of knowing the flight time of an electron in a small electrostatically-deflected CRT. I know there should be a straightforward way to do this, but I'm blocking on it. Thanks for any ideas.