Motion of Charged Particles in Electric Fields

[simplicity12]

Homework Statement

3. Two electrons are fired at 3.5 x 10^6 m/s directly at each other.
a)Calculate the smallest possible between the two electrons.

Homework Equations

Ek= 1/2mv^2
Ee= kq1q2/r

The Attempt at a Solution

I made the Ek and the Ee equal, but i keep on getting the wrong answer. Can someone please help me?

 

[robphy]

What does Ek represent physically? (what is m? v?)

 

[marcusl]

Please show us your work so we can point out where the error is.