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Forums
Physics
Classical Physics
Mechanics
Why do objects always rotate about their centre of mass?
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[QUOTE="PeroK, post: 6358169, member: 493650"] Imagine any rigid body. Take the frame of reference in which the centre of mass is at rest. The only possible configurations for that object are rotations. There are no other possibilities. Now take any point on that body and consider the frame of reference in which that point is at rest. Again, the only possible configurations for the object in that frame of reference are rotations. If the body is rigid, there are no other configurations that preserve the original shape. One you remove any translational motion, rotations are the only possibilities that remain. [/QUOTE]
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Forums
Physics
Classical Physics
Mechanics
Why do objects always rotate about their centre of mass?
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