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Re: Mechanical Leverage

From "F. Russell" <fr@random.info>
Newsgroups sci.physics
Subject Re: Mechanical Leverage
Date 2017-07-21 22:16 +0000
Organization NewsGuy - Unlimited Usenet $23.95
Message-ID <oktuf80r4a@news3.newsguy.com> (permalink)
References <XnsA7B98D5D7D10nospamnospaminvalid@213.239.209.88>

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On Fri, 21 Jul 2017 20:48:56 +0000, Boris wrote:

> 
> I have no intuitive sense, but do want a deeper understaning of why it is 
> that a lever and a fulcrum work the way they do.
>

Energy = Force * Displacement

An one end of the lever there is a small force but a large
displacement.

At the other end of the lever there is a large force but
a small displacement.

But the energy at both ends is the same (see equation above).

Thus, a small force is able to generate a larger force but
only if that larger force acts through a smaller displacement.

This basic idea applies not only to a lever but also to
the hydraulics lift that one sees at auto mechanic shops.

Does this help?  If not, ask again.

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Thread

Mechanical Leverage Boris <nospam@nospam.invalid> - 2017-07-21 20:48 +0000
  Re: Mechanical Leverage Double-A <double-a3@hush.com> - 2017-07-21 13:56 -0700
    Re: Mechanical Leverage Boris <nospam@nospam.invalid> - 2017-07-21 20:53 +0000
  Re: Mechanical Leverage "F. Russell" <fr@random.info> - 2017-07-21 22:16 +0000
    Re: Mechanical Leverage Boris <nospam@nospam.invalid> - 2017-07-22 15:43 +0000
      Re: Mechanical Leverage "F. Russell" <fr@random.info> - 2017-07-22 17:22 +0000
      Re: Mechanical Leverage "F. Russell" <fr@random.info> - 2017-07-22 23:59 +0000
  Re: Mechanical Leverage "F. Russell" <fr@random.info> - 2017-07-23 00:07 +0000
    Re: Mechanical Leverage James McGinn <jimmcginn9@gmail.com> - 2017-07-22 17:24 -0700

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