Solving Advanced SHM Problem: Tips & Guidance

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PhysicsKid0123
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I have a homework problem I need help with. I don't want the answer given to me since I know I can answer it with the proper guidance.
How should I approach this problem?

ImageUploadedByPhysics Forums1409893185.944767.jpg


This is what I have so far. How should I approach this? Did I start off right?
ImageUploadedByPhysics Forums1409893621.787673.jpg

Thanks in advanced!
 
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Sorry thought this was the homework section
 
hi there

can you please rotate and repost your images so I don't have to lie down to try and read them :)

cheers
Dave

PS have asked for it to be moved to homework section
 
We have:
[itex]x=\alpha \cos{(\omega t-\phi)} \Rightarrow \dot x=-\alpha \omega \sin{(\omega t-\phi)}[/itex]
Let's take [itex]\delta=\omega t-\phi[/itex], then we can write:
[itex]\sin^2 \delta+\cos^2 \delta=1 \Rightarrow (\frac{\dot x}{\alpha \omega})^2+(\frac{x}{\alpha})^2=1[/itex].
Is it enough or I should explain further?
 
Shyan said:
We have:
[itex]x=\alpha \cos{(\omega t-\phi)} \Rightarrow \dot x=-\alpha \omega \sin{(\omega t-\phi)}[/itex]
Let's take [itex]\delta=\omega t-\phi[/itex], then we can write:
[itex]\sin^2 \delta+\cos^2 \delta=1 \Rightarrow (\frac{\dot x}{\alpha \omega})^2+(\frac{x}{\alpha})^2=1[/itex].
Is it enough or I should explain further?
Mhmm let me see what I can extrapolate from this. Give me a moment... Thanks btw.
 
davenn said:
hi there

can you please rotate and repost your images so I don't have to lie down to try and read them :)

cheers
Dave

PS have asked for it to be moved to homework section
Okay! I will take a better picture!