Angular Velocity of LP record

  • Thread starter valeriex0x
  • Start date
  • #1
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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.
 

Answers and Replies

  • #2
47
0
[itex]ω=2π/T[/itex]

One of the basic equations of circular motion, well worth knowing!
 
  • #3
43
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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
 
  • #4
47
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Unless we both made some horrible mistake!
 
  • #5
43
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yayy! thanks! on to the next...
 

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