What happens to energy in a complete inelastic collision?

[Adit]

Could be a stupid question. But in case of complete inelastic collision, when one particle is at rest and other one collides with it and both move together, I made calculations(pretty simple ones), the conservation of linear momentum and conservation of kinetic energy give different results.
Can anyone explain it?

 

[Orodruin]

conservation of kinetic energy give different results

They should, kinetic energy is only conserved in elastic collisions.

 

[Adit]

So, what happens to rest of the energy? Heat? Any law of thermodynamic?

 

[Orodruin]

Depends on the collision. Heat, internal energy, sound, etc.

 

[Adit]

I mean there's a precise amount of energy getting drained. It has to impact somewhere, like if in space, sound won't be a concern. If you can tell it more specifically. But thanks anyway, I got it. A burden out of my head.