Definition:SI/Force/Kilogram Force
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Definition
The kilogram force is an SI unit of force.
It is defined as being:
- The gravitational force exerted on a mass of one kilogram on the surface of Earth.
In this context, the value of the standard acceleration due to gravity is used, taken to be $9.80665 \, \mathrm m \, \mathrm s^{-2}$.
Conversion Factors
\(\ds \) | \(\) | \(\ds 1\) | kilogram force | |||||||||||
\(\ds \) | \(=\) | \(\ds 9 \cdotp 80665\) | newtons | |||||||||||
\(\ds \) | \(\approx\) | \(\ds 2 \cdotp 205\) | pounds force |
Symbol
- $\mathrm {kgf}$
The symbol for the kilogram force is $\mathrm {kgf}$.
The $\LaTeX$ code for \(\mathrm {kgf}\) is \mathrm {kgf}
.
Also known as
Some sources hyphenate: kilogram-force.
The kilogram force is also known as the kilopond.
Some sources refer to it as the kilogram weight.
Linguistic Note on Kilo
The prefix kilo- derives from the Greek word χίλιοι (khilioi), which means thousand.
Sources
- 1969: J.C. Anderson, D.M. Hum, B.G. Neal and J.H. Whitelaw: Data and Formulae for Engineering Students (2nd ed.) ... (previous) ... (next): $1.$ Units and Abbreviations: $1.3$ British and other units
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): kilogram-force
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): kilogram-force