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				Originally posted by gregarat  
 
In other words 
 
f =ma  
 
*f =net force 
*m=mass 
*a =acceleration 
 
 
			
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 Actually energy or momuntum = mass * velocity SQUARED.
Just like in ballistics... and that is what a car is.  When you double the speed you quadruple the momentum.  When you double the mass, you double the momentum.
Jabba