Will "centrifugal propulsion" works?

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SUMMARY

The discussion centers on the feasibility of a vehicle utilizing "centrifugal propulsion" to drive forward. Participants conclude that such a mechanism would not work, as it would violate Newton's first law of motion, resulting in a net force of zero. The concept of "reactionless drives," including centrifugal propulsion, is deemed unviable, as the forces generated by the rotating weights would cancel each other out, leading to no continuous forward motion.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Familiarity with the concept of centrifugal force
  • Knowledge of reactionless drive theories
  • Basic principles of force cancellation in physics
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  • Research the principles of Newton's first law of motion
  • Explore the concept of centrifugal force in detail
  • Investigate the theories surrounding reactionless drives, including the EMDrive
  • Examine case studies of failed propulsion concepts in physics
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This discussion is beneficial for physicists, engineering students, and anyone interested in propulsion technologies and the fundamental laws of motion.

Aeronautic Freek
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image veichle with 4 wheels ,beams rotate about point " A",each weight can slide radialy on own "beam" ,so weights rotate in cirlce but with different tangential velocity .Different tangential velocity produce greater "centrifugal force" in one part of circle ,so weight "push" at veichle construcion with greater force in ona part of cirlce,so can we drive this veichle forward?
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Aeronautic Freek said:
so can we drive this veichle forward?
No. You might be able to wobble it back and forth a bit, but not drive it forward continuously.

This would violate Newton's first law and is what would be called a "reactionless drive"
 
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Dale said:
No. You might be able to wobble it back and forth a bit, but not drive it forward continuously.
can you explain why forces cancle out, so Fnet=0?
 
Aeronautic Freek said:
can you explain why forces cancle out, so Fnet=0?
Qualitatively you have one mass pushing forwards strongly while you have three masses pushing backwards weakly. They cancel each other out.

If you set it to be one mass then you will get the wobble that I mentioned. It will push forward briefly with a strong force and then backwards with a weaker force for a longer time. Overall it will cancel out.
 
Aeronautic Freek said:
can you explain why forces cancle out, so Fnet=0?

"Reactionless Drives" is on the list of banned topics at the PF. Please follow the link below. Thank you.

PF Banned Topics said:
EMDrive and other reactionless drives
See https://www.physicsforums.com/threads/nasas-em-drive.884753/
 
@Dale thanks for answer

@berkerman, first time i heard for "reactionless drive" so i didnt know..,ok maybe is best way to delete the topic..
 
No worries, we will just lock the thread.
 
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