A proton is released from rest in a uniform electric field that has a magnitude of 8.0 imes 10^(4)(V)/(m). The proton undergoes a displacement of magnitude d=0.50m in the direction of E. Find the speed of the proton after completing the displacement.
(Sender note: I saw a solution of the question in a more advanced way, the solution I need is by using the fact that the energy in the system is conservtive)
A proton is released from rest in a uniform electric field that has a magnitude of