1. Not finding help here? Sign up for a free 30min 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!

Resultant Amplitude of 2 Waves

  1. Apr 17, 2011 #1
    1. The problem statement, all variables and given/known data

    Two sinusoidal waves have the same angular frequency, the same amplitude ym, and travel in the same direction in the same medium. If they differ in phase by 50 degrees, the amplitude of the resultant wave is?

    2. Relevant equations

    3. The attempt at a solution

    How do I go about figuring this out? Do I need to use phasors?

    [tex]\sqrt{(1+cos(50))^{2} + (sin(50))^{2}}[/tex]

    Isn't the superposition of 2 waves y1(x,t) and y2(x,t)

    y'(x,t) = y1(x,t)+y2(x,t)


    Thanks again!
  2. jcsd
  3. Apr 18, 2011 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    Yes, that method works well here.

    Yes, that's right.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook