A metal ball with a mass of 3.37 x 10-6 kg and a charge of +5.21 mC has a kinetic energy of 6.49 x 108 J. It is traveling directly at an infinite plane of charge with a charge distribution of +4.07 C/m2. If it is currently 1.55 m away from the plane of charge, how close will it come to the plane before stopping?