# Foot-pound

Foot-pound

Das foot-pound ist eine britische und US-amerikanische Einheit sowohl der Arbeit oder Energie als auch des Drehmoments (dort auch Pound-foot). Das Einheitenzeichen ist ft·lb.

Ein foot-pound entspricht genau 1,355.817.948.331.400.4 J (Joule) und berechnet sich mit:

$1 \,\mathrm{ft} \cdot \mathrm{lb} = \mathrm{lb} \cdot g_\mathrm{Gravitation} \cdot \mathrm{ft} = 0.45359237 \,\mathrm{kg} \,\cdot \,9.80665 \,{\mathrm{m} \over \mathrm{s}^2} \cdot \mathrm{lb} = 1.35581\dots \,\mathrm{kg} {\mathrm{m}^2 \over \mathrm{s}^2} = 1.355\,817\,948\,331\,400\,4 \,\mathrm{J}$

550 Foot-pound in der Sekunde entsprechen einem PS (763 Watt). Das foot-pound kann folgendermaßen berechnet werden:

W = F x D

Wobei W die Arbeit (in foot-pound), F die Kraft (in pound) und D die Strecke (in foot) über die die Kraft angewendet wird, ist.

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• Foot pound — (Mech.) A unit of energy, or work, being equal to the work done in raising one pound avoirdupois against the force of gravity through a vertical distance of one foot. [1913 Webster] …   The Collaborative International Dictionary of English

• foot-pound — [foot′pound΄] n. a basic unit of energy or work in the FPS system, equal to the amount of work needed to raise a weight of one pound a distance of one foot (1.3558 joule): symbol, ft lb …   English World dictionary

• foot-pound — /foot pownd /, n. Physics. a foot pound second unit of work or energy, equal to the work done by a force of one pound when its point of application moves through a distance of one foot in the direction of the force. Abbr.: ft lb [1840 50] * * * …   Universalium

• foot-pound|al — «FUT POWN duhl», noun. a unit of work or energy, equivalent to the work done by a force of one poundal acting through a distance of one foot. It is equal to a foot pound divided by the acceleration due to gravity, or about 32.2 feet per second… …   Useful english dictionary

• foot-pound — foot′ pound′ n. phs a unit of energy equal to the energy expended in raising one pound a distance of one foot Abbr.: ft lb • Etymology: 1840–50 …   From formal English to slang

• foot-pound — noun a unit of work equal to a force of one pound moving through a distance of one foot • Hypernyms: ↑work unit, ↑heat unit, ↑energy unit • Part Holonyms: ↑foot ton * * * ˈ ̷ ̷| ̷ ̷ noun (plural …   Useful english dictionary

• Foot-pound — Pied livre Le pied livre force ou pied livre (foot pound force ou foot pound en anglais, symbole : ft·lbf or ft·lb) est une unité de mesure anglo saxonne de travail ou d énergie. Elle correspond au travail développé par une force de une… …   Wikipédia en Français

• foot-pound — Energy expended, or work done, in raising a mass of 1 pound a height of 1 foot vertically against gravitational force. * * * foot pound pau̇nd n, pl foot pounds a unit of work equal to the work done by a force of one pound acting through a… …   Medical dictionary

• foot-pound — noun A unit of work done, or energy expended, when a force of one pound acts through a distance of one foot See Also: foot pound second, foot poundal …   Wiktionary

• foot-pound — (ft lb) A measurement of the work involved in lifting one pound one foot. In tightening, it is one pound pull one foot from the center of an object. Torque, or the twisting motion of an engine, is expressed in terms of foot pounds at a certain… …   Dictionary of automotive terms

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