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The pound-force is equal to the gravitational force exerted on a mass of one avoirdupois pound on the surface of Earth.Since the 18th century, the unit has been used in low-precision measurements, for which small changes in Earth's gravity (which varies from equator to pole by up to half a percent) can safely be neglected.
Units for other physical quantities are derived from this set as needed. In English Engineering Units, the pound-mass and the pound-force are distinct base units, and Newton's Second Law of Motion takes the form = where is the acceleration in ft/s 2 and g c = 32.174 lb·ft/(lbf·s 2).
inch-pound force: in lbf ≡ g 0 × 1 lb × 1 in = 0.112 984 829 027 6167 J: joule (SI unit) J The work done when a force of one newton moves the point of its application a distance of one metre in the direction of the force. [32] = 1 J = 1 m⋅N = 1 kg⋅m 2 /s 2 = 1 C⋅V = 1 W⋅s kilocalorie; large calorie: kcal; Cal ≡ 1000 cal IT = 4. ...
Template: Pound-force. 12 languages. ... Print/export Download as PDF; Printable version; In other projects Wikidata item ...
1.0 °F (−17.2 °C) °F K (F K) °F °C (F C) °F °R (F R) Celsius change: C-change: Used for temperature intervals instead of actual temperatures Example: {{convert|5|C-change|0}} warmer Result: 5 °C (9 °F) warmer Fahrenheit change: F-change: Used for temperature intervals instead of actual temperatures Example: {{convert|10|F-change|0 ...
≈ 0.031 081 lb F ≡ 1 lb⋅ ft /s 2 The value of g n ( 9.806 65 m/s 2 ) as used in the official definition of the kilogram-force is used here for all gravitational units.
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Print/export Download as PDF; Printable version; In other projects Wikimedia Commons; ... Pound (force) Pound per square inch; Pound-foot (torque)