Difference between revisions of "Forest UCM EnergyIntPart"

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;Conservation of Momentum
 
;Conservation of Momentum
: <math>\left ( p_1 + p_2 \right ) _{initial} = \left ( p_1 + p_2 \right ) _{final}</math>
+
: <math>\left ( p_1 + p_2 \right ) _{\mbox{initial}} = \left ( p_1 + p_2 \right ) _{\mbox{final}}</math>
  
 
:Conservation of Energy  
 
:Conservation of Energy  
  
: <math>\left ( T + U  \right ) _{initial} = \left ( T + U \right ) _{final}</math>
+
: <math>\left ( T + U  \right ) _{\mbox{initial}} = \left ( T + U \right ) _{\mbox{final}}</math>
  
 
When the initial and final states are  far away fromthe collision point
 
When the initial and final states are  far away fromthe collision point
  
;<math>U_{initial} = U_{final} = 0 =</math> arbitrary constant  
+
:<math>U_{\mbox{initial}} = U_{\mbox{final}} = 0 =</math> arbitrary constant  
  
  
 
[[Forest_UCM_Energy#Energy_of_Interacting_Particles]]
 
[[Forest_UCM_Energy#Energy_of_Interacting_Particles]]

Revision as of 12:52, 28 September 2014

Energy of Interacting particles


Translational invariance

One potential for Both Particles

Both forces from same potential

just take appropriate derivative

Total work given by one potential

Elastic Collisions

Definition

BOTH Momentum and Energy are conserved in an elastic collision

Example


Consider two object that collide elastically

Conservation of Momentum
[math]\left ( p_1 + p_2 \right ) _{\mbox{initial}} = \left ( p_1 + p_2 \right ) _{\mbox{final}}[/math]
Conservation of Energy
[math]\left ( T + U \right ) _{\mbox{initial}} = \left ( T + U \right ) _{\mbox{final}}[/math]

When the initial and final states are far away fromthe collision point

[math]U_{\mbox{initial}} = U_{\mbox{final}} = 0 =[/math] arbitrary constant


Forest_UCM_Energy#Energy_of_Interacting_Particles