Examples

 

REMEMBER, ENERGY IS THE CAPACITY TO CHANGE OTHER OBJECTS (WORK)

 

WORK IS EQUAL TO THE CHANGE IN ENERGY

W =  ∆E

POWER IS HOW FAST THE WORK IS DONE

POWER = W/∆t=(FORCE * DISTANCE)/TIME

POWER = FORCE * (DISPLACEMENT/TIME)

POWER = FORCE * VELOCITY

 

 

SKIER - ENERGY CONSERVATION

 
 YOU CAN'T DESTROY ENERGY  KE0 + PE0 = KE1 + PE1

 

PILE DRIVER

 
 IF WORK IS DONE, THE ENERGY IS USED TO DO THE WORK, SO THE ENERGY IS DECREASED BY THE AMOUNT OF WORK DONE.

 

 

FOOTBALL
 
 

 

 

 

SKIER WITH FRICTION (ANIMATION)
 
 

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ROLLERCOASTER
 
 

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CAR AND RAMP
  
  

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Forces in Car Crashes



 


 

 

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Stopping Distance
 

 

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Copyright 2005 -  S. B. EglI