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Proof Change of kinetic energy in collision

  • #1

Homework Statement



Give equation change of kinetic energy in collision :
Q = 1/2 μ v2 (1-e2)

Proof that for both energy kinetic of particle is loss after the collision?

Homework Equations



e = (V2 finish - V1 finish) / (V1 initial - V2 initial)
μ = reduced mass = (m1.m2) / (m1+m2)
v = v1inital - v2initial

The Attempt at a Solution



k1init = ...
k2init = ...
k1finish = ...
k2finish = ...
 

Answers and Replies

  • #2
993
13
e = (V2 finish - V1 finish) / (V1 initial - V2 initial)
Besides the above you need another equation

i.e.

conservation of momentum.
 
  • #3
Besides the above you need another equation

i.e.

conservation of momentum.
I just only had that equation.
 
  • #4
993
13
The principle of conservation of momentum is obeyed in every collision ( if used correctly!) and so can always be used just like 'f = ma' for example.
 

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