A proton accelerates from rest in a uniform electric field of $670\frac{N}{C}.$ At some later time, its speed is $1\mathrm{.}36{10}^6\frac{m}{s}.$

$($a$)$ Find the magnitude of the acceleration of the proton.

$\frac{m}{s^2}$

$($b$)$ How long does it take the proton to reach this speed?

$s$

$($c$)$ How far has it moved in that interval?

$m$

$($d$)$ What is its kinetic energy at the later time?

J