Definition:SI/Force

Definition

Various SI units of force which have specific names are as follows:

The newton is an SI unit of force.

It is defined as being:

The amount of force required to accelerate a mass of one kilogram at a rate of one metre per second squared.

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$\ds 1$

newton

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$=$

$\ds 10^5$

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$\approx$

$\ds 0.2248$

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 $9.80665 \, \mathrm m \, \mathrm s^{-2}$.

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$\ds 1$

kilogram force

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$=$

$\ds 9 \cdotp 80665$

$\ds $

$\approx$

$\ds 2 \cdotp 205$