I need to do a practical about a yoyo.(adsbygoogle = window.adsbygoogle || []).push({});

We made a video (somebody keeps te jojo from teh ground a certain height and let it fall, after a certain time it doesn't move anymore and stays at the bottom) in which you can see the motion and with a programma we can see the falling speed etc. But we can't measure the rotation speed, we need to derive it:

I found out that the energy comparison=

m*g*h = 1/2*m*v^2 + Rotational kinetic energy

normally rotational kinetic energy = 1/2 * I * w^2

But our teachers says that this is the comparison for a cylinder, I need to derive a comparison myself, it should be possible with a integral calculus.

Can somebody help me?

Thanks,

dr. PaZQaL

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# Yoyo calculation

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