Will "centrifugal propulsion" works?

In summary, the conversation discusses the possibility of driving a vehicle forward using a weight that rotates in a circle with different tangential velocities. However, this violates Newton's first law and is considered a "reactionless drive." The forces involved cancel each other out, resulting in a net force of zero. This topic is also considered banned in certain forums.
  • #1
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?
thrust.png
 
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  • #2
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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  • #3
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?
 
  • #4
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.
 
  • #5
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/
 
  • #6
@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..
 
  • #7
No worries, we will just lock the thread.
 
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1. How does centrifugal propulsion work?

Centrifugal propulsion works by using centrifugal force to propel an object forward. This force is created by rotating blades or rotors, which push against the surrounding air or fluid, creating thrust.

2. What are the advantages of using centrifugal propulsion?

Some advantages of centrifugal propulsion include its simplicity, reliability, and efficiency. It also allows for greater control and maneuverability compared to other propulsion methods.

3. Can centrifugal propulsion be used in space?

Yes, centrifugal propulsion can be used in space. In fact, it is commonly used in space propulsion systems, such as ion thrusters and solar sails.

4. How does centrifugal propulsion differ from other propulsion methods?

Centrifugal propulsion differs from other methods, such as chemical propulsion, in that it does not rely on the combustion of fuel. Instead, it uses the rotation of blades or rotors to create thrust.

5. Are there any limitations to using centrifugal propulsion?

One limitation of centrifugal propulsion is that it is not as powerful as other propulsion methods, so it may not be suitable for larger or heavier objects. It also requires a source of energy, such as electricity, to power the rotating blades or rotors.

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