Angular velocity with time varying moment

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Discussion Overview

The discussion revolves around a homework problem related to angular velocity in the context of a time-varying moment. Participants explore foundational concepts such as angular velocity, moment of inertia, angular acceleration, and torque, while seeking guidance on how to approach the problem.

Discussion Character

  • Homework-related
  • Exploratory

Main Points Raised

  • One participant expresses confusion about how to start solving the problem, indicating a lack of understanding of the relevant concepts.
  • Another participant questions the initial poster's lack of understanding, suggesting it may be related to a class assignment.
  • A participant asks if the terms 'moment of inertia', 'angular acceleration', or 'torque' have been studied, implying their relevance to the problem.
  • One participant provides two clues, indicating that integration is necessary and that a specific variable (mb) is not needed.
  • A mentor notes the change in thread title for clarity and compliance with forum requirements, indicating the nature of the discussion as homework-related.
  • The original poster acknowledges the hints and realizes that integrating the momentum equation and considering inertia could lead to a solution.

Areas of Agreement / Disagreement

The discussion does not present a consensus, as participants are at different levels of understanding and are exploring various aspects of the problem without a clear resolution.

Contextual Notes

Participants have not fully defined the assumptions or parameters of the problem, and there are unresolved steps regarding the integration process and its implications for the solution.

SteliosVas
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Hi there,

I have been given this question, and I have not even the slightest of clue's where to start.

I know angular velocity is equal to ω=v/r

But besides that I have no idea.

Where can I start?
 

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How is it that you have been given a problem that you have no clue how to solve? Is this for a class?
 
Have you studied the terms 'moment of inertia', 'angular acceleration', or 'torque' yet?
 
Here are two clues:
1) You don't need mb.
2) You need to perform an integration.
 
Please note that I have changed the thread title to make it more descriptive of the subject matter. This is a requirement for the Homework sections of Physics Forums. The thread was moved here (because it is a homework type question) from a section where thread title requirements are not so stringent.

-- gneill, PF Mentor
 
Ah right I got you guys, thanks for the help. It didn't click to me initially that if i integrate the momentum equation and multiply by 1/Inertia I should get the solution.

Thanks!
 

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