Is the force produce by precession reactionless?

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    Force Precession
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Discussion Overview

The discussion revolves around the concept of precession and whether the force produced by precession is reactionless. Participants explore the implications of precession in relation to classical physics, torque, and the nature of forces involved in rotating systems.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • Some participants suggest that studies indicate precession may not produce a reaction force, questioning its compatibility with classical physics.
  • One participant expresses confusion about the nature of precession and its relationship to torque, seeking clarity on whether the torque induced by precession is produced by a force.
  • Another participant proposes that gyroscopic precession is a manifestation of centrifugal force, describing it as a "pseudo force" rather than a true force.
  • A participant emphasizes the importance of understanding physical forces without linguistic complications, framing their question about the torque acquired by the Earth in response to the gyroscope's secondary torque.
  • One participant asserts that there is no such thing as a reactionless force, stating that energy loss from a gyroscope results from its slowing down when restrained from precession.

Areas of Agreement / Disagreement

Participants express differing views on the nature of forces related to precession, with no consensus reached on whether the force produced by precession is reactionless or how it interacts with other forces.

Contextual Notes

Participants reference concepts such as torque and pseudo forces, which may depend on specific definitions and interpretations. The discussion includes varying levels of understanding and terminology, leading to potential ambiguities.

icarolo
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Some studies point so.
Besides i suposse it´s not against classical physics since nobody important said that spinning forces had reaction
 
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icarolo said:
Some studies point so.
Besides i suposse it´s not against classical physics since nobody important said that spinning forces had reaction
Do you even know what precession is?
 
hmm.. could it be that aviator is back?
 
inha said:
hmm.. could it be that aviator is back?

I don't doubt that at all... and he still has no clue what "conservation of angular momentum" is.

Zz.
 
You are not answering my question, I´m not sure I came to the right place.
Rotation produces wobbling that produces precession that produces rotation in a different plane than the original rotation.
I´m better at concepts that at words, but I still find my question easy to answer. Does the force produced by precession have a reaction? If you say that it does not produce a force do you mean that the torque produced by precession is not produced by a force? Then by what is produced the torque induced by precession?
By the way I´m not an aviator
 
Don't know who the original poster is, but I would like to make sure that my own understanding is accurate. Someone please check me on the following response:

I would have responded that gyroscopic procession is one of the ways in which centrifugal force effects objects. As such, it would not be considered an actuall force, but rather a "pseudo force", just like centrifugal force. Both of these phenomena are simply ways in which inertia manifests itself in an object that has been set spinning by some other, "True" force.

Would you guys consider that response to be accurate?
 
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I don't like to get lost understanding physical forces because of linguistic problems.
I think the use of concepts like pseudo force makes you lose track of the original concept so I´ll set my question to the minimal physical concept:
I give torque to the gyroscope, the Earth acquires an opposite torque, precession causes a secundary torque in a plane situated 90º from the first plane in the giroscope.Does the Earth acquire an oposite torque to this secodary torque of the gyroscope?
My question can be answered with a simple yes or no
 
I don't like the term "pseudo force, but let me explain it anyway: If you are inside a centrifuge, you feel a force pulling you toward the outside of a centrifuge (in a line away from the center). In fact, the force being applied to you is the centrifuge pushing you toward the center.

The short answer to your first question, however, is that no, there is no such thing as a reactionless force. Any energy loss from a gyroscope being restrained from precession comes from the spinning - ie, it slows down.
 
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inha said:
hmm.. could it be that aviator is back?
I don't really think so. This fellow is far too coherent.

edit: It's obvious that he's familiar with aviator's questions, though. I just spotted a post about the bicycle wheel/chair example farther down the page.
 
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