An electron moving parallel to the x axis has an initial speed of $3\mathrm{.}22106$ m$/$s at the origin. Its speed is reduced to $1\mathrm{.}24105$ m$/$s at the point x $=2\mathrm{.}00$ cm$.$

$($a$)$ Calculate the electric potential difference between the origin and that point.

Volts

$($b$)$ Which point is at the higher potential?

both have the same potentialthe origin$$ the point x $=2\mathrm{.}00$ cm