Electric Potential & Kinetic Energy

[yOVivo]

Homework Statement

Points A and B have electric potentials of 332 V and 149 V, respectively. When an electron released from rest at point A arrives at point C, its kinetic energy is K. When the electron is released from rest a point B, however, its kinetic energy when it reaches point C is 2K. What is the electric potential at point C? What is the kinetic energy K?

Homework Equations

I don't know exactly what to use, so I'd rather not list all available equations...

The Attempt at a Solution

I tried using Energy Conservation but kept getting a contradiction. The fact that the electric potential at Point A is larger than the electric potential at Point B but the kinetic energy gained while traveling from A to C is less than that from traveling from B to C is confusing me. Help?

 

[LowlyPion]

Welcome to PF.

W = q*ΔV

is likely all you need isn't it?

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elewor.html#c1