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Author Topic: Does centrifugal force actually exist?  (Read 19249 times)

Offline wolfekeeper

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Does centrifugal force actually exist?
« Reply #25 on: 19/12/2009 17:55:10 »
 

Offline wolfekeeper

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Does centrifugal force actually exist?
« Reply #26 on: 19/12/2009 18:22:21 »
No, as black hat man says, in a rotating reference frame it does exist; and so does the coriolis effect/force.
 

Online yor_on

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Does centrifugal force actually exist?
« Reply #27 on: 26/12/2009 17:05:26 »
There was this ride at the fair I went to and there was this massive kind of circle thingy with a cage around it.

You just had to stand up in it and the ride went nearly right up on it's side and everything while spinning. You weren't strapped in or anything. Is this a result of centrifugal force?

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Think about it! lolz

Only until it breaks then you will have other 'forces jumping in'
 

Online yor_on

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Does centrifugal force actually exist?
« Reply #28 on: 26/12/2009 17:06:56 »
As for if it exist.
Yes it does, but it is also a matter of definition.

But you can definitely prove it on Earth.
 

Offline Pmb

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Does centrifugal force actually exist?
« Reply #29 on: 26/12/2009 20:26:41 »
Quote from: Bass
Does centrifugal force actually exist- that is, is there actually a force that pushes objects away from a center of rotation?
Yes. But keep in mind that the centrifugal force, like all inertial forces, are dependant on the frame of reference.

This is a controversial subject. Some people like to think of them as fake while others consider them to be very real. I've taken some quotes from some mechanics and general relativity texts which comment on this issue, i.e. inertial forces as being very real. You can read them at the end of this page

http://home.comcast.net/~peter.m.brown/gr/inertial_force.htm
Quote from: Ultima
My physics teacher would bitch slap me in the face if he heard me say centrifugal force, it's centripetal force.
Your teacher would be very wrong for doing such a thing since the centrifugal force and the centripetal force are two different forces altogether, i.e. they are defined differently. The definitions are

Centrifugal force - http://en.wikipedia.org/wiki/Centrifugal_force
Quote
Centrifugal force (from Latin centrum "center" and fugere "to flee") represents the effects of inertia that arise in connection with rotation and which are experienced as an outward force away from the center of rotation.
This outward force only exists in the rotating frame though.

Centripetal  force - http://en.wikipedia.org/wiki/Centripetal_force
Quote
Centripetal force is a force that makes a body follow a curved path; it is always directed orthogonal to the velocity of the body, toward the instantaneous center of curvature of the path.[1][2] The term centripetal force comes from the Latin words centrum ("center") and petere ("tend towards", "aim at"), signifying that the force is directed inward toward the center of curvature of the path.
« Last Edit: 26/12/2009 22:33:15 by Pmb »
 

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Does centrifugal force actually exist?
« Reply #29 on: 26/12/2009 20:26:41 »

 

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