How Far Does a Charged Particle Travel in an Electric Field?

[floridianfisher]

Homework Statement

A 1-gram particle with a charge of 1 milliC starts from rest in a uniform electric field of magnitude E = 10 V/m. How
far (in m) does the particle travel in 2 seconds?
I know the answere is 10 but I don't know how to find it

Homework Equations

PE/q=-Ex

The Attempt at a Solution

I converted all units but I have PE and change in x left and I am stumped can anyone help

I have PE/.oo1= -10* x

I know the answere is 10m already but I can't figure out how

 

[Dick]

Don't use PE. Use force F=E*q. Then use F=ma to find the constant acceleration. Now use kinematics to find the distance travelled. I don't think the answer is 10m.