1. A point charge Q is held in the center of a charged ring. Half of the ring is charged uniformly with charge 2Q and the other half with 4Q. When the point charge is released, it accelerates toward infinitum. What is the ultimate speed of the point charge? 2. Relevant equations[E=F/q] 3. Don't know where to start. I know that there is a force applied to the charge, but the separation of the ring into halves is confusing me.