I just solved two of Goldstein problems. let me give you the gist.(adsbygoogle = window.adsbygoogle || []).push({});

1. A point mass is on a fixed hemisphere under the influence of a g field.

2. A hoop is on a fixed hemisphere under the influence of a g field.

I have found the equations of motion, etc... no probs there.

I found that the point mass will leave the sphere at a smaller angle than the hoop. Here the angle is measured w.r.t the vertical.

I would not have guesed this and am wondering if anyone has a good conceptual explanation for this. thanks

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# Homework Help: Conceptual Mechanics

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