Why is momentum conserved in elastic and inelastic collisions?

Join the discussion
Registration is free. Start your own thread to ask a follow-up.
3 replies · 2K views
Sandeep T S
Messages
67
Reaction score
0
Why momentum conserved in elastic collision and inelastic collision? Please attach mathematical proof too
 
Physics news on Phys.org
Doc Al said:
Consider Newton's 3rd law.
P^2/2m ,I got it
 
What you wrote was just the expression for the kinetic energy. The point made by Doc Al in post #2 is that from Newton's third law, you can prove that momentum is conserved.
 
  • Like
Likes   Reactions: Chestermiller