Simple Harmonic motion problems

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http://sweb.uky.edu/~lsadam0/problem2.JPG [Broken]


Im kinda lost on this problem. Shouldnt the Y motion be described as A*sin(wt)?

In there equation we are considering when x=0, so the kx term is removed, but where is this third term coming from, and then should Y motion just be described as Asin(-wt-o)?
 
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  • #2
dextercioby
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Nope,unless,at t=0 the amplitude is zero.Nope,the III-rd term is called "initial phase" and should not be missing when writing the general solution.

Daniel.
 

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