A proton accelerates from rest in a uniform electric ?eld of 677 N/C. At some later time, its speed is 9.4 × 10 5 m/s. Given that the magnitude of the acceleration was found to be 6.5 x 10^10 m/s2 and the time it took to reach this speed is 14.4 microseconds,
how far has it moved in this time interval? Also,
what is its kinetic energy at the later time?