Simple Harmonic Motion

by Mishy
Tags: harmonic, motion, simple
 Sci Advisor HW Helper P: 1,334 Your formula for angular velocity can't be right because it doesn't have the right units to be an angular velocity. So what did you do wrong? You have this equation $$\frac{d^2\theta}{dt^2} = \frac{3 k }{m L} x$$, but you can't just conclude that everything in front of the x is equal to $$\omega^2$$. To see why not, think about the units. What you need to do is relate x to $$\theta$$, then try to extract the angular frequency. Hope this helps.