Science > Physics > The Feyman Lectures on Physics: Gravitational Potential Energy
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Science > Physics |
| User: |
"Victor" |
| Date: |
15 Apr 2004 12:07:40 AM |
| Object: |
The Feyman Lectures on Physics: Gravitational Potential Energy |
I've been trying to understand the second paragraph on page 4-3 of
Feyman's Lectures on Physics. I'm having a hard time visualizing the
situation he is describing. First he says, "Then we could lower the
weight from Y to X, obtaining free power, ..." What does he mean
lower the weight from Y to X. Does he mean lowering the balance on
the three-unit side of machine B to the level of the three-units on
machine A or those he literally mean removing some weight from Y and
putting it on machine A at X? And how did we obtained free power?
Also, towards the end of this paragraph he says, "This will put the
one-unit weight back where it was before, and leave both machines
ready to be used again!" I can't seem to understand what he means by
"both machines ready to be used again!"
Victor
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| User: "" |
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| Title: Re: The Feyman Lectures on Physics: Gravitational Potential Energy |
15 Apr 2004 08:49:56 AM |
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(Victor) wrote in message news:<96f113b2.0404142107.513538ed@posting.google.com>...
I've been trying to understand the second paragraph on page 4-3 of
Feyman's Lectures on Physics.
[snip]
Gee boss! When I go uphill, it's hard. And when I go downhill,
it's easy.
Socks
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| User: "Victor" |
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| Title: Re: The Feyman Lectures on Physics: Gravitational Potential Energy |
15 Apr 2004 06:21:56 PM |
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wrote in message news:<c7976c46.0404150549.6dcd42fa@posting.google.com>...
vgfigue@comcast.net (Victor) wrote in message news:<96f113b2.0404142107.513538ed@posting.google.com>...
I've been trying to understand the second paragraph on page 4-3 of
Feyman's Lectures on Physics.
[snip]
Gee boss! When I go uphill, it's hard. And when I go downhill,
it's easy.
Socks
If you know so much, why don't you explain to me in detail the example
I'm trying to understand?
Victor
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| User: "Sam Wormley" |
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| Title: Re: The Fey[n]man Lectures on Physics: Gravitational Potential Energy |
15 Apr 2004 08:43:39 AM |
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Victor wrote:
I've been trying to understand the second paragraph on page 4-3 of
Fey[n]man's Lectures on Physics. I'm having a hard time visualizing the
situation he is describing.
Gravitational Potential Energy
http://scienceworld.wolfram.com/physics/GravitationalPotentialEnergy.html
Draw some diagrams... apply the mathematics... then read Feynman again.
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