A proton is released from rest in a uniform electric field of magnitude 50000 V/m di- rected along the positive x axis and under- goes a displacement of 0.3 m in the direction of the electric field as shown. 50000 V/m 0.3 m B Find the amount of the kinetic energy gained after it has moved 0.3 m. Answer in units of J. ++++++++++++-

A proton is released from rest in a uniform electric field of magnitude 50000 V/m di- rected along the positive x axis and under- goes a displacement of 0.3 m in the direction of the electric field as shown. 50000 V/m 0.3 m B Find the amount of the kinetic energy gained after it has moved 0.3 m. Answer in units of J. ++++++++++++-