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In unit systems where force is a derived unit, like in SI units, g c is equal to 1. In unit systems where force is a primary unit, like in imperial and US customary measurement systems , g c may or may not equal 1 depending on the units used, and value other than 1 may be required to obtain correct results. [ 2 ]
≈ 8.238 722 06 × 10 −8 N [31] dyne : dyn ≡ g⋅cm/s 2 = 10 −5 N kilogram-force; kilopond; grave-force: kgf; kp; gvf ≡ g 0 × 1 kg = 9.806 65 N: kip; kip-force: kip; kipf; klbf ≡ g 0 × 1000 lb = 4.448 221 615 2605 × 10 3 N: milligrave-force, gravet-force: mgvf; gvtf ≡ g 0 × 1 g = 9.806 65 mN: long ton-force: tnf [citation ...
In 19th-century France there was as a unit of power, the poncelet, which was defined as the power required to raise a mass of 1 quintal (1 q = 100 kg) at a velocity of 1 m/s. The German or metric horsepower (PS, Pferdestärke ) is arbitrarily selected to be three quarters thereof.
1.0 mdyn (1.6 × 10 −5 gr f) Metric gravitational units: tonne-force: t-f t f: 1.0 t f (9.8 kN; 0.98 LT f; 1.1 ST f) tf tf kilogram-force: kg-f kg f: 1.0 kg f (9.8 N; 2.2 lb f) kgf kgf gram-force: g-f g f: 1.0 g f (9.8 mN; 0.035 oz f) gf gf milligram-force: mg-f mg f: 1.0 mg f (9.8 μN; 0.015 gr f) mgf mgf Avoirdupois-based units: poundal ...
Metric prefixes; Text Symbol Factor or; yotta Y 10 24: 1 000 000 000 000 000 000 000 000: zetta Z 10 21: 1 000 000 000 000 000 000 000: exa E 10 18: 1 000 000 000 000 000 000: peta P 10 15: 1 000 000 000 000 000: tera T
The kayser (K) is a unit of wavenumber equal to 1 cm −1 (100 m −1). The gal (Gal) is a unit of acceleration equal to 1 cm/s 2. [3] The dyne (dyn) is a unit of force equal to 1 g⋅cm⋅s −2 (10 μN). [3] The barye (Ba) is a unit of pressure equal to 1 dyn⋅cm −2 (100 mPa). The erg (erg) is a unit of energy equal to 1 dyn⋅cm (100 nJ). [3]
The dyne is defined as "the force required to accelerate a mass of one gram at a rate of one centimetre per second squared". [2] An equivalent definition of the dyne is "that force which, acting for one second, will produce a change of velocity of one centimetre per second in a mass of one gram".
In physics, natural unit systems are measurement systems for which selected physical constants have been set to 1 through nondimensionalization of physical units.For example, the speed of light c may be set to 1, and it may then be omitted, equating mass and energy directly E = m rather than using c as a conversion factor in the typical mass–energy equivalence equation E = mc 2.