Physics - Spinning a bucket of water in a vertical circle

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Homework Help Overview

The discussion revolves around the physics concepts related to spinning a bucket of water in a vertical circle, focusing on the forces involved in such a motion.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the relevant physics ideas, questioning the use of centripetal and centrifugal forces, and discuss the implications of vertical motion on the forces acting on the bucket and water.

Discussion Status

The conversation is ongoing, with participants providing insights into the forces at play and questioning the clarity of the original problem statement. Some guidance has been offered regarding the relevance of centripetal force, while the role of other forces remains under consideration.

Contextual Notes

Participants note the vagueness of the original question and the need for precise definitions of the forces involved. There is also mention of the potential for conservation laws to be relevant in this context.

candypie90
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Homework Statement
What are the two physics ideas of spinning a bucket of water in a vertical circle? would it be centripetal and centrifugal force?
Relevant Equations
F = mac = (mv2 / r)
F = mac = (mv2 / r)
 
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candypie90 said:
Homework Statement: What are the two physics ideas of spinning a bucket of water in a vertical circle? would it be centripetal and centrifugal force?
Homework Equations: F = mac = (mv2 / r)

F = mac = (mv2 / r)
The question is rather vague. You would not use both concepts to analyse it, you wouid use one or the other. Please quote the question word for word as given to you.
 
haruspex said:
The question is rather vague. You would not use both concepts to analyse it, you wouid use one or the other. Please quote the question word for word as given to you.

Oh sorry, the exact question word for word is: What are two or more physics ideas which are relevant to spinning a bucket of water in a vertical circle?

Thank you.
 
candypie90 said:
Oh sorry, the exact question word for word is: What are two or more physics ideas which are relevant to spinning a bucket of water in a vertical circle?

Thank you.
Ok.
Certainly centripetal force. I would not mention centrifugal for the reason I gave.
Vertical implies a certain other force should be relevant, but not sure that it is an 'idea' in this sense.
Might be able to work a conservation law into it.
So far, it could be an empty bucket. How can you bring the water into it?
 
haruspex said:
Vertical implies a certain other force should be relevant, but not sure that it is an 'idea' in this sense.
I would think that an idea would be what relates this other vertical force to the centripetal force so that the water can go around the circle without spilling.
 
Don't guess. Do some internet research. Watch videos of buckets spinning in vertical circles. They come with explanations that should give you some ideas.
 

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