Pardon my ignorance...what is a foot-pound?

Nightcrawler a foot pound is what causes muzzle jump and recoil. I hope that answers your question. ;)

Mercy guys!! Remind me not to ask any complicated questions in here, I would have to go dig up Einstein. :)
 
What was the question? :confused:

Never mind. you guys gave me a headache. :)

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If you're not a little upset with the way the world is going, you're not paying attention.
 
Like Tears said, a pound is a unit of force, not mass.
Energy is the ability to do work.
Work is Force * Distance.
Of course energy can also be used to heat a mass....


...If all of the energy of a .577 Tyrannosaur is deposited into a 165 pound man, his body temperature will rise from 98.600F to 98.678F

I am a nerd.
 
As opposed to kinetic engergy, which is energy due to motion, there is potential engergy which is energy due to position. :)

"Kine-" and "cine-" have the same Latin roots, from "motion" or "moving"--which is why them moom pitchers are "cinemas"

And everything's tied to everything else.

:), Art
 
This reminds me of the time my freshman physics professor told us he could explain Einstein's Special Theory of Relativity in two words.

"Everything's relative."
 
Munro and allan are correct - that is, enough force to move one pound one foot, perfectly horizontally, across a (theoretically) frictionless surface. True, a gun would blow up if you put the number of pounds which will cause a bullet's energy to move just one foot, right in front of the muzzle, but this is because of the inability to transfer the energy smoothly. If/when there is an ability to completely transfer the energy into the target of a bullet, physics says it will do what the foot-pounds indicate. In other words, if you could smoothly transfer the energy of a 1,000 foot-pound .44 mag into a one pound target, it would be pushed 1000 foot across a frictionless surface; a 1,000 pound target, one foot.
 
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