View Single Post
  #7  
Old April 1st, 2007, 08:03 PM

Raapys Raapys is offline
First Lieutenant
 
Join Date: Jan 2005
Posts: 689
Thanks: 0
Thanked 0 Times in 0 Posts
Raapys is on a distinguished road
Default Re: OT: The 10th Demention

Quote:
Kinetic energy is NOT all energy.
A compressed spring isn't hotter or moving any faster than a relaxed one. And that the stretched slingshot dosen't move either... and how about all that chemical potential energy in your car's fuel tank?
You're right, I wasn't thinking.

Quote:
If you are moving outwards, you lose kinetic energy and speed, but gain potential energy for being higher up and having farther to fall.
I see what you're saying, but I mean, the 'potential energy' you are talking about is a product of gravity. What when an object's speed does exceed the escape velocity; where does the kinetic energy the object loses on the way out, because of gravity, go? Since the object will never be stopped by that mass's gravity once it's reached e.v. that means no potential energy was created but alot of existing energy was lost, or?
Reply With Quote