Calculating Angular acceleration of wheel

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Homework Help Overview

The problem involves calculating the angular acceleration of a wheel that starts from rest and reaches a specified angular velocity over a set time period. The context includes determining angular displacement during two intervals of time.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the units for angular velocity and how to convert revolutions per minute to radians per second. There are attempts to clarify the correct formulas for angular acceleration and the relationship between angular velocity and its units.

Discussion Status

The discussion is ongoing, with participants exploring unit conversions and clarifying the formulas needed for the calculations. Some guidance has been offered regarding the units of angular acceleration and velocity, but no consensus has been reached on the specific calculations.

Contextual Notes

There is a focus on ensuring the original poster understands the necessary conversions and formulas, with some participants expressing uncertainty about the correctness of the initial attempts. Additionally, there is a shift in topic towards lever classes, indicating a potential distraction from the main problem.

AkkiJay
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Homework Statement


Calculate the angular acceleration in radians per second squared of a wheel that starts from rest and attains an angular velocity of 545 revolutions per minute in 1.00 minute. (a) What is the angular displacement in radians of the wheel during the first 0.500 min? (b) During the second 0.500min?


Homework Equations


d=T/I
v=d/t
Angular speed/time interval=angular acceleration


The Attempt at a Solution


v*t=d 545 * 1=545
(545)*(0.500min)

Thank you
 
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What are the units for angular velocity?
 
TaxOnFear said:
What are the units for angular velocity?

...and how do you convert revolutions per minute to this unit?
 
DoTell said:
...and how do you convert revolutions per minute to this unit?

That's what I'm asking the OP to do. We can't do the work for him, but point him in the right direction.
 
Radians per second squared i think the answer should be in...can you tell me the right formulas to use because i am not sure if these are right or not.
 
Nearly, that's the units for angular acceleration. Angular velocity is Rad/s.

The problem asks you to find the angular acceleration first, so do that, and we'll go from there.
 
Ok, I have found that answer already...Can you tell me what type of lever (what class) is testtube that we use in chemistry? 1st, 2nd, or 3rd...I am thinking 1st
 

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