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Wave Problem

  • Thread starter Scarborm
  • Start date
10
0
Hey!
Here is one that I thought would be easy:

Two traveling waves move on a string that has a fixed end at x=0. They are identical except for opposite velocities. Each has an amplitude of 2.46mm, a period of 3.65ms, and a speed of 111m/s. Write the wave function of the resulting standing wave.

The wave would be represented by the function, y(x,t)=(A_sw)(sinkx)(sinwt)

My answers were: A_sw=2A=4.92x10^-3m
k=w/v=1720/111=15.5/m
w=2*pi/T=2*pi/(3.65x10^-3)=1720rad/s

This is not right though... any ideas? I am least sure about k.
 
Last edited:

Answers and Replies

lightgrav
Homework Helper
1,248
30
What makes you think it isn't right?

If you're not given the actual wave functions,
you can't find the phase in sin(wt+phi)
(so you should leave it as arbitrary).
 
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