1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Angular frequency

  1. Mar 17, 2009 #1
    1. The problem statement, all variables and given/known data
    Now, I've learned that the time period of a spring mass system having spring constant k and mass m is 2 [tex]\pi[/tex] (m/k)^1/2. What is actually the angular frequency of a vertical spring mass system. It is executing one-dimensional motion, how does it have angular frequency? And..don't we call it angular velocity rather than angular frequency?

    2. Relevant equations

    T = 2 [tex]\pi[/tex] (m/k)^1/2

    3. The attempt at a solution
    Checked a few books, none of them really explained it.
  2. jcsd
  3. Mar 17, 2009 #2
    Help please, I'm new to oscillations and waves.
  4. Mar 18, 2009 #3


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    This is actually a good question, though I've never heard anyone ask it before.

    Angular frequency is somewhat a misnomer. But it has come to mean the frequency (in terms of radians) of anything that oscillates sinusoidally.

    Since spring - mass motion is described by
    A sin(ωt),​
    then the ωt term can be thought of as an angle--even though it doesn't represent the angle of any physical object.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook