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**Equation Needed to Figure Resulting Kinetic Energy and Velocities from Fusion....**

## Homework Statement

Hey,

I am have the initial velocities and masses of nuclei involved in fusion, and am trying to figure out the resulting velocities and kinetic energies. Since this is an inelastic reaction, i cant use Kinetic energy, as it is not conserved. I have the conservation of momentum to use, because it is conserved, but to use it I still need to find velocity. What could i use to find this? Also, if you could clarify how to find the kinetic energies for each resulting particle, it would be greatly appreciated!

## Homework Equations

Deuterium+Deuterium--> Helium-3 + neutron

each deuteron has K.E. of 69.91 KeV, and a velocity of 2.59 x 10^6 m/s

## The Attempt at a Solution

I have already decided that the Law of Conservation of Momentum would be a good equation to use, but i still need an equation to get velocity.

Note: This is not a Homework question, per se. It was simply moved here.