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Date Posted: 23:31:56 04/29/01 Sun
Author: physics student @ cal
Author Host/IP: ACB4A7CB.ipt.aol.com / 172.180.167.203
Subject: Re: Question about definition of work done
In reply to: Jeff 's message, "Question about definition of work done" on 05:59:57 03/04/00 Sat

>It seems that all the theorem in physics is derive
>from the simple equation, Work done = Force X
>displacement.
>But I can`t find any prove for this fundamental
>equation.Can it be proved?
No it cannot.
It's just a definition.
But, why do we choose such definition?
because we realized that it's invariant under Newton's law. We can define it some other way, but it doesn't have to be conserve then, which brings us headache.

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  • Re: Question about definition of work done -- Nyarkanyuy Abila k, 17:53:48 04/26/09 Sun
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