Why is momentum always conserved?

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SUMMARY

Momentum is always conserved due to the principles outlined in Noether's Theorem, which connects conservation laws to symmetries in physical systems. Specifically, translational symmetry indicates that if a system is invariant under spatial translations, momentum remains constant. This fundamental concept is crucial in understanding the behavior of objects in motion and the interactions between them in various physical contexts.

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  • Noether's Theorem
  • Translational symmetry
  • Basic principles of classical mechanics
  • Understanding of momentum as a physical quantity
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Cheman
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Why is momentum always conserved? Please explain this in real terms of physics rather than just rearrangements of equations. ( i have a thorough understanding of maths, but i have asked this question before and people always give the same answer of f= ma, etc, and therefore it just is! :wink: )

Furthermore, what actually IS momentum?

Thanks.
 
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Cheman, I suggest you look into Noether's Theorem and translational symmetry.
 

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