An electron is accelerated horizontally from rest in a television picture tube by a potential difference

Question

of 1.00 × 104 V.
(a) Find the final velocity after the original acceleration period.
(b) It then passes between two horizontal plates 6.0 cm long and 1.0 cm apart which have a
potential difference of 200 V. At what angle will the electron be traveling after it passes
between the plates?

any help is really appreciated..im extremely lost with questions like this,. thanks.