Period and Frequency


The period T of an object in circular motion is the time taken for the object to make one complete revolution.

  • Unit: s (seconds)

The frequency f of an object in circular motion is the number of complete revolutions made by the object per unit time.

  • Unit: s-1 or Hz (hertz)

$T = \frac{1}{f}$

Other useful equations:

$\omega = \frac{2 \pi}{T}$

$\omega = 2 \pi f$

$v =r \omega$ , where v is the linear velocity

 


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