# Newton (unit)

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.

$1\, \mathrm{N}=1\, \mathrm{kg} \cdot \mathrm{m} / \mathrm{s}^{2}$
• 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.