Date: Sat, 02 Oct 2004 18:24:13 GMT From: amesnospamrak.demon.co.uk (Andrew Stephenson) Subject: Re: Re: Re: Re: Town And Country Miles
In article <3rdsl01oll2tuc3mm5pnaup4f05v0l98finospamcom> mwm1(delete)nospamedu "delete" writes: > And, I am almost too embarrassed to ask but exactly what is a > Newton in kilos or grams. [...] Not trying to tread on the other response, which gives numbers... IIRC, "newtons" often cause confusion in modern physics classes. Formally, the SI unit "newton" is that force which, acting on a mass of one kilogramme, causes it to accelerate by 1 metre/sec^2. Thus a lump of 1 kilo _mass_ (NB) on Earth exerts a _force_ (NB) downward due to Earth's gravity of roughly 9.807 newtons. Physicists and designers of machinery prefer to be very careful when saying words such as "kilo", "newton", "mass" and "force". Blokes heaving on spanners here on Earth can get by with saying that 1 newton of force == 1 kilo of force. (Class dismissed. No homework today.) -- Andrew Stephenson