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Old 05-06-2010, 14:18   #3
arizonaguide
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Join Date: Jun 2009
Location: Alaska / Arizona
Posts: 16
Steve, I agree with you mostly, but

we didn't lose the discrete distance measurement part of velocity, just the time part.

We keep the units of mass (weight) in the form of the LB, and we keep only HALF of the velocity units in the form of FT...and we just drop the Seconds unit of time.

If a foot-pound is a measurement of KINETIC ENERGY (or joules) and is the "capacity" for a moving object to do work...then how can moving 1LB a distance of 1FT in 1Second be the same capacity to do work as moving the same 1LB by 1FT in several hours. That would seem to me to be a different "capacity" to do work.

PLUS, mathematically...you can't just "drop" units of measure from a formula.
Something doesn't add up...but I'm sure it's a lack of understanding on MY part.

I need to fully understand the difference between "energy" (kinetic, and other), "momentum", and "work" and power". The answer HAS to be in there somewhere.
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