# Acceleration of an electron in a constant electric field

1. Sep 1, 2009

### gc33550

1. The problem statement, all variables and given/known data
An electron, starting from rest, is accelerated by a uniform electric field of 4 104 N/C that extends over a distance of 7 cm. Find the speed of the electron after it leaves the region of uniform electric field.

2. Relevant equations
F=(q1q2)/r^2
and maybe the Work equation

3. The attempt at a solution
I really have no idea if i could get an idea of how to start it i may be able to think through it. I don't want an answer just a little guidance please
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

2. Sep 1, 2009

### Hootenanny

Staff Emeritus
The work-energy theorem is the way to go ...

3. Sep 3, 2009

### noblegas

Your force equation is incorrect; You are missing a constant

4. Sep 3, 2009

### rl.bhat

What is the force experienced by an electron in an electric field?
What is the work done on the electron by the electric field?