How does kinetic energy affect the stopping distance of a vehicle traveling at 30 miles per hour compared to the same vehicle traveling at 60 miles per hour

Imagine that the rightward current flows in the rod for a short time. as a result, what will the net charge on the right and left ends of the rod become? left end negative and right end positive left end negative and right end negative left end negative and right end nearly neutral left end nearly neutral and right end positive both ends nearly neutral