What happens to energy in a complete inelastic collision?

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Discussion Overview

The discussion revolves around the energy transformations that occur during a complete inelastic collision, particularly focusing on the apparent discrepancy between the conservation of linear momentum and the conservation of kinetic energy. Participants explore the implications of energy loss in such collisions.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions the results of calculations involving conservation of linear momentum and kinetic energy in a complete inelastic collision.
  • Another participant asserts that kinetic energy is not conserved in inelastic collisions, which is why the calculations yield different results.
  • There is a query about what happens to the "rest of the energy" during the collision, with a suggestion that it may transform into heat or other forms of energy.
  • Some participants propose that the energy could be converted into heat, internal energy, sound, or other forms depending on the specifics of the collision.
  • One participant expresses a desire for a more precise understanding of energy transformation, noting that in different environments (like space), some forms of energy loss (such as sound) may not be relevant.

Areas of Agreement / Disagreement

Participants generally agree that kinetic energy is not conserved in complete inelastic collisions, but there is no consensus on the specific forms of energy transformation that occur as a result.

Contextual Notes

The discussion does not fully resolve the specifics of energy transformation, and assumptions about the nature of the collision and the environment are not explicitly stated.

Adit
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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?
 
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Adit said:
conservation of kinetic energy give different results

They should, kinetic energy is only conserved in elastic collisions.
 
So, what happens to rest of the energy? Heat? Any law of thermodynamic?
 
Depends on the collision. Heat, internal energy, sound, etc.
 
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.
 

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