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JPComben
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Hello everyone, this is my first post here so I hope I don't commit any physicsforums faux pas in this!
I have a curiousity. If you take a rugby ball or any other prolate ellipsoid and give it a good spin, it will rise up onto it's end. I wonder if any of you guys could clear up exactly why this happens!? I have sketchy notions that the ball seeks to take up a position where the concentration of its mass is the lowest possible distance away from the axis of its rotation but as to why this might be I can only think it's because it's more efficient in some way.
Very hazy anyway, so if anyone can enlighten me I would be very happy indeed. TIA.
James
I have a curiousity. If you take a rugby ball or any other prolate ellipsoid and give it a good spin, it will rise up onto it's end. I wonder if any of you guys could clear up exactly why this happens!? I have sketchy notions that the ball seeks to take up a position where the concentration of its mass is the lowest possible distance away from the axis of its rotation but as to why this might be I can only think it's because it's more efficient in some way.
Very hazy anyway, so if anyone can enlighten me I would be very happy indeed. TIA.
James