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I would like a geometrical physics answers so I can have an intuitive grasp about the problem. That means no nonphysical things like matrices, coordinates and random basis of vectors.

For example it the initial period of revolution was t , when is it going to stop.

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  • $\begingroup$ Do you mean the mass is a rectangle? Is the mass in free space, is one corner on a table? $\endgroup$ – jacob1729 May 28 at 9:16
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    $\begingroup$ Look from energy point of view as the disappative forces don't exist so the energy of the system is a constant quantity and hence if the plate has a fixed moment of inertia then we have that it rotates for infinite time.... $\endgroup$ – Aditya Garg May 28 at 9:17
  • $\begingroup$ Is there gravity or some other source of torque? If there is gravity, what is the orientation of the thin rectangle? $\endgroup$ – probably_someone May 28 at 10:00
  • $\begingroup$ Gravity doesn't matter, if you had a square and it's rotating about a physical axis piercing it through it's diagonal it would never stop , but rectangle has a more complicated moment of inertia $\endgroup$ – Leo Kovacic May 28 at 12:33

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