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see the joke is that someone else does the work
(lemmy.blahaj.zone)
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this post was submitted on 16 Mar 2025
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Tried to read about this but it all goes over my head. If anyone wants to ELI5 why magnetic forces do no work, that would be great :)
IIRC it depends on the frame of reference. Relative to a magnetic field, the only thing a magnetic force does is changing the velocity direction of affected objects. All work regarding the absolute magnitude of the velocity is zero (no lateral acceleration).
When you hold two strong magnets an inch apart, then let them go it looks like they move themselves (add velocity)?
What makes the magnets start moving towards each other from a complete stop?
It's the magnets, doing work!