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### What is a Newton?

```Date: 04/28/2002 at 10:56:17
From: Jenny
Subject: Weights and measures

What is the weight in newtons of a 100-kg person?
```

```
Date: 04/30/2002 at 13:22:06
From: Doctor Sarah
Subject: Re: Weights and measures

Hi Jenny - thanks for writing to Dr. Math.

A newton is a unit of force, not weight.  See Russ Rowlett's _How
Many? A Dictionary of Units of Measurement_:

http://www.unc.edu/~rowlett/units/dictN.html

newton (N)
the SI unit of force. A force of one newton will accelerate a mass of
one kilogram at the rate of one meter per second per second. The
corresponding unit in the CGS system is the dyne; there are 105 dynes
0.224 809 pounds of force (lbf) or 7.233 01 poundals. The newton is
also equal to about 0.101 972 kilograms of force (kgf) or kiloponds
(kp). The newton is named for Isaac Newton (1642-1727), the British
mathematician, physicist, and natural philosopher. He was the first
person to understand clearly the relationship between force (F), mass
(m), and acceleration (a) expressed by the formula F = ma.

- Doctor Sarah, The Math Forum
http://mathforum.org/dr.math/
```
Associated Topics:
High School Physics/Chemistry
Middle School Terms/Units of Measurement

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