- #1
jaumzaum
- 434
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Is third Newton law valid for rotation / Torque? I mean, can we say that for every torque there must be another torque with equal magnitude and opposite direction?
This can only be true for contact forces or radial forces, as these forces will create a reaction that will cancel the torque from the first one.
Reaction forces that are not radial or that has a different point of application will not cancel the torque and therefote third Newton Law would not be valid.
But we have 4 fundamental forces. And in my understanding all of them are radial. That said, is Third Newton law for rotation a fact always valid?
This can only be true for contact forces or radial forces, as these forces will create a reaction that will cancel the torque from the first one.
Reaction forces that are not radial or that has a different point of application will not cancel the torque and therefote third Newton Law would not be valid.
But we have 4 fundamental forces. And in my understanding all of them are radial. That said, is Third Newton law for rotation a fact always valid?