|N the derived SI unit of force that imparts an acceleration of 1 metre per second to a mass of 1 kilogram; equivalent to 105 dynes or 7.233 poundals|
|[C20: named after Sir Isaac |
|one of the deepest craters on the moon, over 7300 m deep and about 112 km in diameter, situated in the SE quadrant|
|Sir Isaac. 1642--1727, English mathematician, physicist, astronomer, and philosopher, noted particularly for his law of gravitation, his three laws of motion, his theory that light is composed of corpuscles, and his development of calculus independently of Leibnitz. His works include Principia Mathematica (1687) and Opticks (1704)|
newton new·ton (nōōt'n, nyōōt'n)
In the meter-kilogram-second system, the unit of force required to accelerate a mass of one kilogram one meter per second per second, equal to 100,000 dynes.
The SI derived unit used to measure force. One newton is equal to the force needed to accelerate a mass of one kilogram one meter per second per second. See also joule.