An electron enters a region between two large parallel plates made of aluminum separated by a distance of

cm and kept at a potential difference of

V$.$ The electron enters through a small hole in the negative plate and moves toward the positive plate. At the time the electron is near the negative plate, its speed is

m$/$s$.$

Assume the electric field between the plates to be uniform, and find the speed of electron at $($a$)$

cm$,($b$)$

cm$,($c$)$

cm$,$ and $($d$)$

cm from the negative plate, and $($e$)$ immediately before it hits the positive plate.