## Demonstration

Hi

Can someone help me to demonstrate the 2 followed relations.

The dispositif is an engine who spin around himself

ώ = 2.(pi)/T

ώ is the angular velocity

thx and sorry for my bad english

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 Is that supposed to be $$\dot \omega$$ as in $$\frac{d \omega}{dt}$$? I assume not. I think that you are just trying to show that if $$\omega = 2 \pi f$$ where $$\omega$$ is the angular frequency and f is the frequency, then an equivalent way of writing it is $$\omega = \frac{2 \pi}{T}$$ using the relationship that $$f = 1/T$$