Is this a center of mass question?

AI Thread Summary
The discussion clarifies that the question about finding the solid angle subtended by a thin circular disk is not related to center of mass calculations. It emphasizes that the problem is purely geometrical, focusing on solid angles rather than mass distribution. Participants suggest that understanding the geometry of the disk's position relative to the origin is key to solving the problem. The conversation indicates that the solution involves geometric principles rather than physical properties. Overall, the emphasis remains on the solid angle concept rather than center of mass considerations.
jlmac2001
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Question: Find the solid angle subtended at the origin by a thin circular disk of radius a, whose cente is a distance b from the origin and where the normal to the disk is parallel.

Do I have to find the center of mass to solve this question?
 
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"is this a center of mass question?"

No, it's a "solid angle" question.

This question is purely geometrical, and has nothing to do with distriubtion of mass.
 
so...

how would I do it?
 

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