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Finding the amplitude and phase of two sinusoidal motions

  1. Sep 10, 2008 #1
    1. The problem statement, all variables and given/known data
    Determine the amplitude and phase of the resultant motion when two sinusoidal motions having the same frequency and traveling in the same direction are combined, if their amplitudes are 3.0 cm and 4.0 cm and they differ in phase by pi/2 radians.


    2. Relevant equations



    3. The attempt at a solution
    I just started this Physics class and im lost. I bought my textbook online and it still hasn't come in the mail. Can someone just point me in the right direction as to how to solve this problem, and then i'll try to solve it on my own.

    Thanks so much!
    Zachary
     
  2. jcsd
  3. Sep 10, 2008 #2

    Dick

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