Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

SHM Calculating Amplitude

  1. Mar 4, 2013 #1
    Hello and thanks for you time.

    Just a quicky :-)

    For a free vibration impulse response, the acceleration a is given by:

    a = -ω^2*Asin(ωt)

    So am I right in saying that you can rearrnage to calculate the amplitude A as:

    A = a/(-ω^2*sin(ωt))

  2. jcsd
  3. Mar 4, 2013 #2


    User Avatar
    2016 Award

    Staff: Mentor

    If the denominator is not zero, this is a valid transformation, sure.
    To calculate the amplitude in that way, you need all those parameters for some point in time.
  4. Mar 4, 2013 #3
    OK - thanks very much.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook