Find the magnitude of the electric field in the capacitor

[titi07]

Homework Statement

An electron entering a parallel-plate capacitor with a speed of v=5.20 x 10^-6 m/s. The electric field of the capacitor has deflected the electron downward by a distance of d=0.594cm at the point where the electron exists the capacitor.
a)find the magnitude of the electric field in the capacitor____N/C
b)find the speed of the electron when it exists the capacitor___m/s

Homework Equations

The Attempt at a Solution

I have no clue how to start this problem

 

[hage567]

What's the electric force on a charge in an electric field? Apply this to Newton's second law.

Then think about your kinematic equations (like in projectile motion).