What is the Center of Mass for a Donut and an Empty Box within a Box?

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Homework Help Overview

The discussion revolves around determining the center of mass (CoM) for a donut shape and an empty box within another box. The context involves geometric considerations and the implications of symmetry in these shapes.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are exploring the concept of center of mass, questioning the implications of symmetry, and considering the effects of the hole in the donut shape. There are inquiries about the dimensionality of the figures and how the presence of the hole affects the CoM.

Discussion Status

The discussion is ongoing with participants seeking clarification on the original poster's attempts and understanding of the problem. Some guidance has been offered regarding symmetry, but no consensus has been reached on the approach to finding the CoM.

Contextual Notes

There is a mention of an edit to the original post, indicating potential updates or additional information that may affect the discussion. The nature of the figures as possibly being 3D is also under consideration.

immeen04
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1. FIgures in this link:
( a donut, and a Box with and empty box inside)
http://postimage.org/image/smdut3cxb/ 2.Find the CoM of the two figures
3. as i attempted for the circle:

Homework Statement


Homework Equations


The Attempt at a Solution

 
Last edited by a moderator:
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Welcome to PF;
How have you attempted these problems?

Do you understand where the com would be if the hole weren't there?
Are these images 3D? i.e. is the circular one literally a torus (a donut shape)?
 
One word hint...Symmetry
 
erm :redface: … guys …

haven't you notived the edit about two hours ago? :wink:​
 
Anyone know how to solve problems involving glases/lenses :-)
 
Nah - nobody reads those messages :)
 

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