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Re: [Phys-l] force conventions




FWIW, and its not worth much,

I've struggled with the lack of good terminology regarding the below for
years.

|
| On 10/27/2006 07:29 PM, I wrote:
|
| > We can define
| > Fu = force exerted *upon* a body by the surroundings
| > Fb = force exerted *by* a body upon the surroundings.
| >
| > It is /conventional/ to write N2 in the form
| > Fu = m a [2]
|
|
| I have a question purely about terminology.
| -- Are there conventional /names/ for Fu and Fb?
| -- Are there conventional adjectives that would permit
| distinguishing Fu from Fb more compactly than two
| complete sentences?
|

I pretty much stick to the complete sentences.

Or when the "surroundings" are simply another body I use subscripts,

E.g.

F_(1 on 2) and F_(2 on 1)


| <snip>
| ================
|
| I am quite aware that it is standard practice to focus
| attention on Fimp to the near-exclusion of Fexp, but still
| IMHO it would be nice to have names for these quantities, if
| only to help emphasize the distinction between them.
|


I.e. until you come to thermodynamics where one is always
worried/confused by wheter or not W is work done on the surroundings or
by the surroundings.

Sorry this reply took so long.