Two long straight conducting wires with linear mass density `lambda` are kept parallel to each other on a smooth horizon- tal surface. Distance between them is d and one end of each wire is connected to each other using a loose wire as shown in the figure. A capacitor is charged so as to have energy `U_(0)` stored in it. The capacitor is connected to the ends of two wires as shown. The resistance (R) of the entire arrangement is negligible and the capacitor discharges quickly. Assume that the distance between the wires do not change during the discharging process. Calculate the speed acquired by two wires as the capacitor discharges

Answer

`(mu_(0)U_(0))/(2pilambdaRd)`