A positron (a particle with a charge of +e and
a mass equal to that of an electron) that is
accelerated from rest between two points at a
fixed potential difference acquires a speed of
9.3 Ă— 10^7 m/s.
What speed is achieved by a proton accelerated from rest between the same two points?
Disregard relativistic effects.
Answer in units of m/s.