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Foot pounds is an old system of energy where
E = 1/2M*V*V/g
where g = gravity = 32.2 ft/sec *sec
If you wish to be further confused it involves two concepts using the same name -- pound as a unit of weight and pounds as a unit of force.
This old system will also give you fits when you try to calculate momentum.
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SFA M-9545
Last edited by Buffalobob; 05-06-2010 at 17:40.
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