# Newton

From Citizendium, the Citizens' Compendium

The **newton** is the SI unit of force, and is the force which will accelerate 1 kilogram one metre per second per second. The symbol of the newton in SI is **N**. The newton is also the unit of weight.

The newton is named for Isaac Newton (1643 - 1727), who developed the laws of motion in classical mechanics.

The newton is a derived unit in the SI:

.

## Related units

- The pascal (Pa) is the SI unit of pressure, and is equal to one newton acting over an area of one square metre.

- The newton-metre (N·m) is the SI unit of torque, and is the amount of torque generated by a force of one newton acting at a radius of one metre. There is no distinct name for this unit.

## Equivalent units of force

- 1 N ≡ 1×10
^{5}dyne (symbol:**dyn**) - 1 N ≈ 0.101972 kilogram-force (symbol:
**kgf**) - 1 N ≈ 0.101972 kilopond (symbol:
**kp**)^{[note 1]} - 1 N ≡ 1×10
^{-3}sthène (symbol:**sn**) - 1 N ≈ 0.224809 pound-force (symbol:
**lbf**) - 1 N ≈ 2.24809×10
^{-4}kip (symbol:**kip**)^{[note 2]} - 1 N ≈ 7.233014 poundal (symbol:
**pdl**)

## Practical use

A kilogram mass has a weight of about 9.81 N in earth's surface gravity. A healthy adult human subject to earth's surface gravity typically weighs between 450 N and 900 N.

The drive train of a 2006 Chevrolet Corvette Z06 can produce approximately 10.3 kN while accelerating the car from 0 to 26.8 m/s (60 miles per hour).