- #1
cheechnchong
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MY Question was answered! thanks to those who posted...i got the right answer from the book!
Last edited:
How Does Conservation of Angular Momentum Apply to Rotational Kinematics?
- Thread starter cheechnchong
- Start date
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Homework Help Overview
The discussion revolves around the application of conservation of angular momentum in the context of rotational kinematics, particularly in relation to creating artificial gravity in a space station.
Discussion Character
- Exploratory, Conceptual clarification, Assumption checking
Approaches and Questions Raised
- Participants explore the relationship between centripetal acceleration and artificial gravity, questioning the necessity of matching Earth's gravity. There are discussions about the implications of angular momentum and the role of mass distribution in the system.
Discussion Status
Some participants have offered hints regarding the calculations needed for centripetal acceleration and angular momentum. There is acknowledgment of previous misunderstandings, and a shift towards focusing on conservation of angular momentum has been noted.
Contextual Notes
There is a mention of varying mass distributions within the space station and how this affects the moment of inertia. Participants are also considering the implications of angular momentum being constant in the system.
- #2
Hootenanny
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HINT: To create the artificial gravitational force what must the centripetal acceleration of the space station be? How fast must the station be rotating to achieve this centripetal acceleration?
- #3
cheechnchong
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Hootenanny said:
ohhhhhhhhh good one
- #4
OlderDan
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Why do you need to know anything about the centripetal acceleration? The artificial gravity would not have to be the same as Earth's gravity.Hootenanny said:
- #5
Hootenanny
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Indeed, I was wrong. This should be treated as a conservation of angular momentum problem. Good Catch Dan, apologies to chee.OlderDan said:
- #6
cheechnchong
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Hootenanny said:
ok but how do i discern the what the masses are used for?? is the angular moment L = Iw ?
- #7
Office_Shredder
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You know what I is initally. You should be able to figure out what I is if everyone is in the center. You should also be able to figure out what I is if everyone is on the outer shell.
You know Iw is constant (angular momentum is constant), so put I when everyone is in the middle over I when everyone is on the outside, you get w when everyone is on the outside over w when everyone is inside
You know Iw is constant (angular momentum is constant), so put I when everyone is in the middle over I when everyone is on the outside, you get w when everyone is on the outside over w when everyone is inside
- #8
cheechnchong
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Office_Shredder said:
this is extremely clear...will try this when i get home later today! thanks and if have any probs check your PM...if you choose to
- #9
cheechnchong
- 132
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Hootenanny said:
hey it's fine! no worries