# Harmonic motion : Calculating period, frequency and angular frequency

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The fan blades of a jet engine make one thousand revolutions in a time of 50.0 ms. Determine

(a) The period in seconds and

(b) The frequency in Hz of the rotational motion

(c) What is the angular frequency of the blade?

https://brainmass.com/physics/circular-motion/calculating-period-frequency-angular-frequency-5682

#### Solution Preview

50ms is milliseconds, 1 thousandth of a second.

a. The period is the time for one revolution so ...

#### Solution Summary

The angular frequency is noted in the solution.

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