At t = 0, a particle is traveling parallel to very large insulating plate at a 0.360 m distance with a speed of 980 m/s. Consider that the insulating plate has uniform surface charge density 2.34. x 10-C/m If the particle is "a proton", find the speed of the proton at 7.40x10-8 s ? Express your answer with the appropriate units. V = Value Units