Can a tiny magnet push away a larger one?

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Discussion Overview

The discussion centers around the interaction between a tiny magnet and a larger magnet, specifically whether the smaller magnet can push the larger one away. The conversation explores concepts related to magnetic forces and Newton's third law of motion.

Discussion Character

  • Debate/contested

Main Points Raised

  • Some participants assert that the forces between the magnets will be equal and opposite, referencing Newton's third law.
  • One participant questions the reasoning, suggesting that a larger magnet could push a smaller one away, implying that the forces might not be equal.
  • Another participant reiterates that if both magnets are attached to a boat, they will not cause any movement, supporting the idea of equal forces.
  • A metaphor involving Baron Munchausen is used to illustrate the perceived impossibility of the smaller magnet exerting a greater force.

Areas of Agreement / Disagreement

Participants generally disagree on whether a tiny magnet can push away a larger one, with some firmly supporting the idea of equal forces and others questioning this conclusion.

Contextual Notes

The discussion does not resolve the underlying assumptions about the nature of magnetic forces or the applicability of Newton's third law in this context.

acistephanie
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No, it won't work. The forces will be equal, and opposite.

Creative idea however.
 
Newton's third law tells you the forces will be equal. If both magnets are attached to the boat it won't go anywhere.
 
How was the story of Baron Munchausen guy lift himself up by his ponytail from the quicksand. Does not work :)
 
acistephanie said:
I don't understand. If you have a really big magnet and put it next to a really tiny one. Wont the tiny one get pushed away. Why would forces be equal? Couldn't I just amp up one of them?
kanato said:
Newton's third law tells you the forces will be equal. If both magnets are attached to the boat it won't go anywhere.
Yup, Newton's third law is the key concept here. As hard as it may be to believe, the smaller magnet pushes back on the larger one with an equal amount of force.

If not for the validity of Newton's third law , stuff like this would be possible (which it isn't):
vlado_skopsko said:
How was the story of Baron Munchausen guy lift himself up by his ponytail from the quicksand. Does not work :)
 

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