How do I convert angular speed to revolution

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Homework Help Overview

The discussion revolves around converting angular speed into revolutions, specifically focusing on the relationship between angular speed in radians per second and revolutions per second. Participants are exploring the context of angular momentum and the implications of moment of inertia in a practical scenario involving a diver.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the conversion of angular speed from radians to revolutions, with some questioning the specific values and context of the problem. There is an attempt to clarify whether the original poster is looking for a conversion or additional information regarding angular displacement.

Discussion Status

The discussion is active, with participants providing insights and seeking clarification on the problem setup. Some guidance has been offered regarding the conversion process, while others are exploring the implications of the diver's moment of inertia and the number of revolutions in a given time frame.

Contextual Notes

There are indications of confusion regarding the specific requirements of the problem, particularly in relation to the diver's angular speed and the time duration involved. The original poster's problem statement includes specific values for moment of inertia and time, which may influence the discussion.

innightmare
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Homework Statement


I need to know how to convert angular speed into revolutions


Homework Equations



W=2*pi/60 sec, but that's for rad over second

The Attempt at a Solution



w=2*pif
 
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I assume you mean that you'd like to convert angular speed in radians per second into revolutions per second. You'll want to use the fact that [tex]2\pi[/tex] radians equals one revolution. Does that help?
 
Im a bit confused. I am working on a problem for linear momentum where I need to find the final angular speed, which was .8. But now I need to convert into revolutions. My t=3.0s
 
I'm not quite sure what your asking for. You have an angular speed in radians per second, correct? Are you trying to convert this value into relovutions per second, or are you trying to find the angualr displacement? You may want to post the problem.
 
Ok, this is the problem:A diver comes off a spring board with arms straight up and legs straight down, giving her a moment of inertia about her rotation axis of 36 kgm^2. She then tucks into a small ball decreasing this moment of inertia of 7.2kgm^2. While tucked she makes four complete revoutions in 1.0s. If she hasnt tucked at all, how many revoultions would she have made in the 3.0s from board to water?
 

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