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Physics Professors...I'm confued about Kinetic Energy numbers?
To clarify further...in the definition of KE "Foot-Pound" is measured as the Energy required to raise a 1LB weight a vertical distance of 1FT. This makes no mention of Velocity units (only "distance")...yet velocity (including time units) is one of the variables in the KE formula.
(1/2Mass x Velocity^2 = FtLb.)
My "problem" Simply,
1.) if Kinetic Energy of the projectile is measured in FtLb,
and 2.) one of the KE formula's multipliers is "Velocity"...
then 3.) where the hell is the complete Velocity Unit (to include time) in the result?
Why do we throw away the TIME factor of velocity in the KE result?
Shouldn't the KE result be in FtLb/second rather than just FtLb? (as a full measure of the "capacity to do work")
If we're going to debate "stopping power" then lets talk about "power" being perhaps more accurate than "energy". I believe the KE formula itself is flawed in that it drops the unit of TIME from the velocity multiplier.
Someone REALLY smart PLEASE explain this to me.
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