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How do I find the phase difference between two oscillators

  1. Dec 8, 2012 #1
    1. The problem statement, all variables and given/known data

    Find the phase difference between two harmonic oscillators at time t=1

    2. Relevant equations
    I've already found x(t)= .4 cos(2.1t) and x(t)= .4cos((pi/2)t + pi)

    3. The attempt at a solution
    I don't really know where to begin
  2. jcsd
  3. Dec 8, 2012 #2


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    Homework Helper
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    2017 Award

    Hello, and welcome to PF!

    Start with recalling (or finding) the definition of the word "phase" for simple harmonic motion.
  4. Dec 8, 2012 #3
    Hey thanks! :)

    Oh wow...Okay now I got it. Just plug in 1 for t and subtract the two terms in the parentheses. Thanks for the lead!
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