Investigating Rolling Objects: Damping & Rotation

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Experiments on rolling objects reveal unexpected energy loss, prompting an investigation into potential causes. The discussion raises the possibility of damping effects contributing to this energy loss during rolling. Participants are encouraged to share insights or suggestions regarding the phenomenon. The role of rolling friction is also highlighted as a critical factor to consider in these experiments. Further exploration and shared knowledge on this topic could enhance understanding of energy dynamics in rolling objects.
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I've been doing experiments investigating rolling objects, and have noticed some interesting facts about energy loss. The loss is significantly greater than I would imagine, and I am having difficulty finding the source of such energy loss.

I'm investigating several possible causes at the moment, and was wondering if anyone knows whether there is some sort of a damping effect that occurs within rolling objects that could account for some of this loss.

Please, if you have knowledge of this, or have other suggestions on this matter then feel free to reply.
 
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Have you taken rolling friction into account?
 

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