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# Newton (unit)

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The **newton** (symbol: N) is the SI unit of force. It is named after Sir Isaac Newton because of his work on classical mechanics. A *newton* is how much force is required to make a mass of one kilogram go faster at a rate of one metre per second.

- [math]1\, \mathrm{N}=1\, \mathrm{kg} \cdot \mathrm{m} / \mathrm{s}^{2}[/math]

- 1 N is the force of Earth's gravity on an apple with a mass of about 102 g.
- On Earth's surface, a mass of 1 kg pushes with an average force of 9.8 N on its support.