Calculating Angular Acceleration: Angular Velocity in Circular Motion

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Homework Help Overview

The discussion revolves around calculating angular acceleration and angular velocity in the context of circular motion, specifically involving a scenario where an object moves in a circular path with a given radius and speed.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants explore the conversion of speed from linear to angular terms, questioning the need for time to determine angular acceleration. There is discussion about the relationship between angular speed and acceleration, as well as the implications of constant linear speed on angular speed.

Discussion Status

The conversation is ongoing, with participants offering insights into the relationships between angular velocity and acceleration. Some guidance has been provided regarding unit conversions, but no consensus has been reached on the specific calculations needed.

Contextual Notes

Participants are navigating the problem with some confusion regarding the distinction between angular speed and angular acceleration, and the necessity of time in their calculations is under consideration.

Sucks@Physics
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James move sin a circular path (radius 15.0m) with a speed of 60 m/s. His angular acceleration in rpm is?

DO you ahve to convert to rad/s then to rev/s then rev/m?

Any help would be appreciated
 
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Do you know the relationship between angular speed and angular acceleration? Study the problem carefully.
 
youw ould have to fine the arc length correct? 15x2(pi) = 94.24777. but I keep thinking i would have to have time before i can solve this problem
 
If James is going at a constant linear speed, the angular speed is also constant. Does that mean anything?
 
so divide that by 60 seconds which would give me 1.5707 rad/s. Is this correct so far?
 
I am just wondering, have you been asked to find angular speed or acceleration?
 
Angular velocity
 
Then why did you ask for acceleration?

Well, w=v/r. Convert as you said in your first post. 1 rev/s = 2*pi rad/s.
 
Sorry about that! but thanks a lot, very much appreciated!
 

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