What is the Angular Velocity of an LP Record?

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Homework Help Overview

The problem involves calculating the angular velocity and period of an LP record, which has a specified diameter and rotates at a constant speed. The subject area relates to circular motion and angular kinematics.

Discussion Character

  • Exploratory, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the conversion of rpm to rad/s and the relationship between angular velocity and period. There is a verification of calculations for angular speed and period, with one participant seeking confirmation of their results.

Discussion Status

The discussion includes attempts to verify calculations and share basic equations related to circular motion. While some participants express uncertainty about their results, there is an ongoing exchange of ideas without a clear consensus on the correctness of the values.

Contextual Notes

Participants are working within the constraints of a homework assignment, which may limit the information they can share or the methods they can use.

valeriex0x
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Homework Statement



The once-popular LP (long-play) records were 12 inches in diameter and turned at a constant 33(1/3) rpm.
Find the angular speed of the LP in rad/s and its period in seconds.


Homework Equations



1 rpm=((2∏)/60)

The Attempt at a Solution



for ω i got 3.49

I need help with finding its period in seconds, T.
 
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[itex]ω=2π/T[/itex]

One of the basic equations of circular motion, well worth knowing!
 
thank you. could you please let me know if my omega is correct. I just want to make sure. for T i got 1.80
 
Unless we both made some horrible mistake!
 
yayy! thanks! on to the next...
 

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