The figure shows a graph of electric potential versus position along the x-axis. A proton is originally at point A, moving in the positive x- direction. How much kinetic energy does it need to have at point A in order to be able to reach point E (with no forces acting on the proton other than those due to the indicated potential)? Points B, C, and D have to be passed on the way. Electric potential at A is 101.8 V, at B is O V, at Cis -60.0 V, at D is 149.1 V, and at E is 55.0 V