A proton $($mass $m=1\mathrm{.}67{10}^{-27}kg)$ is being accelerated along a straight line at $5\mathrm{.}90{10}^{12}\frac{m}{s^2}$ in a machine. If the proton has an

initial speed of $5\mathrm{.}60{10}^5\frac{m}{s}$ and travels $5\mathrm{.}00cm,$ what then is $($a$)$ its speed and $($b$)$ the increase in its kinetic energy?