A unit of energy or work equal to the force needed to lift one pound of weight one foot against gravity.
From foot + pound (a unit of weight and force). This technical term emerged in the 19th century as engineers needed precise measurements for mechanical energy and work calculations.
A footpound is a unit that makes intuitive sense to people—if you lift a one-pound weight one foot high, you've done one footpound of work, which is why it's still used by engineers even though the rest of the world has moved to joules and metric systems.
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