# Kinetic Energy among a set of Point Charges

## Homework Statement

A set of point charges is held in place at the vertices of an
equilateral triangle of side 10.0 cm, as shown in the figure (a) .
Find the maximum amount of total kinetic energy that will be
produced when the charges are released from rest in the
frictionless void of outer space. ## Homework Equations

Unsure, but believe this one is paramount:

V = k*(q/r)

## The Attempt at a Solution

I'm using the formula V = k(q1)/r1 and the example in my textbook on page 590,
which is for only 2 point charges within an isosceles triangle, simply adds the
V1 + V2 to get Vtotal, so I assumed (probably incorrectly) that I could use
this method with 3 charges within an equilateral triangle and simply added the
V1 + V2 + V3 = 809.1 N*m/C. However, they want the answer in joules,
so what if I was even correct in my method, what should be done to my
answer in order to convert it to joules? Are N*m/C = Volts? Wouldn't that
mean I would need to then multiply by the same charges I just multiplied by?
And would I use each individual charge added together, or... what do I do with
these Coulombs?