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≡ 10 ft × 10 ft = 9.290 ... ≡ g 0 × 1 lb av × 1 s 2 /ft ≈ 14.593 903 kg: stone: st ≡ 14 lb av ... ≈ 4.133 789 × 10 −4 Pa⋅s: pound per foot second ...
One slug is a mass equal to 32.17405 lb (14.59390 kg) based on standard gravity, the international foot, and the avoirdupois pound. [3] In other words, at the Earth's surface (in standard gravity), an object with a mass of 1 slug weighs approximately 32.17405 lbf or 143.1173 N. [4] [5]
The stone remains widely used in the United Kingdom and Ireland for human body weight: in those countries people may commonly be said to weigh, e.g., "11 stone 4" (11 stones and 4 pounds), rather than "72 kilograms" as in most of the other countries, or "158 pounds", the conventional way of expressing the same weight in the US and in Canada. [38]
In 1823, the Dictionary of the Vulgar Tongue said the limit for a "light weight" was 12 stone (168 lb, 76.2 kg) while Sportsman's Slang the same year gave 11 stone (154 lb, 69.9 kg) as the limit. [ 8 ]
A pound-foot (lb⋅ft), abbreviated from pound-force foot (lbf · ft), is a unit of torque representing one pound of force acting at a perpendicular distance of one foot from a pivot point. [2] Conversely one foot pound-force (ft · lbf) is the moment about an axis that applies one pound-force at a radius of one foot.
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The pound-force is the product of one avoirdupois pound (exactly 0.45359237 kg) and the standard acceleration due to gravity, approximately 32.174049 ft/s 2 (9.80665 m/s 2). [ 5 ] [ 6 ] [ 7 ] The standard values of acceleration of the standard gravitational field ( g n ) and the international avoirdupois pound (lb) result in a pound-force equal ...
Manhood stone (Max Atlas stone) for reps – 228 kg (503 lb) x 2 reps over 4 ft (48 in) bar [192] Atlas stone one-motion to platform – 205 kg (452 lb) to 4 ft 4 in (52 in) [has achieved this feat twice], [193] and 200 kg (441 lb) to 4 ft 8 in (56 in) [194] (unofficial world record) Atlas stone to shoulder – 160 kg (353 lb) [195]