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 in one newton. In traditional English terms, one newton is about 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/ |
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