Having trouble with a center of mass problem

AI Thread Summary
The discussion centers on a center of mass problem where the solution indicates point 4 as the correct answer, but participants express confusion over this choice. They argue that the majority of the sculpture's mass is below point 4, suggesting it should lower the center of mass instead. Some participants believe the question is poorly constructed and propose that points 2 and 3 also do not accurately represent the center of mass due to excessive mass above those points. A suggestion is made to create a physical model to better visualize the problem. Overall, there is consensus that the question lacks clarity and the proposed answer may not be correct.
Syrus
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Homework Statement



See the attachment below. The solution is stated to be number 4 (option a). I am having trouble understanding this. It seems that a majority of the sculpture's mass (in terms of its y-component) is well below the vertical component of point 4, and hence should lower the CM from where 4 is. I know the question asks for the "most likely" choice, but 3 seems more appropriate, no?


Homework Equations





The Attempt at a Solution

 

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I agree. It's a very bad question. None of those points are anywhere near where I would expect the CoM.

You can prove the point by making a model out of card.
 
Can't possibly be "4" for the reason you state. I'm not convinced 2 or 3 is right either as too much area above those points.
 
I'd put it about half way between 3 and 4. Very sloppily constructed question.
 

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