Subject:
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RE: Tilting trains (Used to be: how did James Mathis make his tilting trains?)
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Newsgroups:
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lugnet.trains
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Date:
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Sun, 10 Feb 2002 21:45:13 GMT
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Reply-To:
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<(bram@po)AvoidSpam(.cwru.edu)>
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Viewed:
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1237 times
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Rhendrix wrtes:
> I thought scientists disproved the whole "centrifugal force"
> thing years ago? And decided that centripital force would
> take its place...
Centrifugal force doesn't actually exist, it's an imaginary force felt
in a rotating system. Consider an elevator accelerating upwards. The
extra acceleration makes you feel heavier. It's as if there's an extra
force besides gravity pulling you down. However, this is just a side
effect of the elevator accelerating up. If you are rotating, your
acceleration is toward the center of rotation (and the centripetal force
is keeping you in that circular path). Since you are accelerating
inwards, just like in the elevator, you feel an "imaginary" force in the
opposite direction of the acceleration. This imaginary force is the
"centrifugal force".
I hope that helps,
--Bram
Bram Lambrecht
bram@cwru.edu
www.bldesign.org
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