(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

This is quite simple, but for some reason I'm getting the wrong answer. I am given a longitudinal wave where the vertical displacement is given by [tex]z(x, t) = Acos(....)[/tex]. I must calculate the vertical acceleration at some time t and position x.

2. Relevant equations

3. The attempt at a solution

I just differentiate twice with respect to time and get [tex][-\omega^{2}A][z(x,t))][/tex]. Correct?

This is not the first time I have encountered a solution error (if it is the case).

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# Homework Help: Error in solutions or am I doing something wrong?

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