Determine the period and frequency of the rotating disk if it makes 40 revolutions in 10 s.
| May 2, 2021 | education
Task data: t (duration of disk rotation) = 10 s; n (number of disc revolutions in a given time) = 40 revolutions.
1) Period of the rotating disk: T = t / n = 10/40 = 0.25 s.
2) The frequency of the rotating disk: ν = 1 / T = n / t = 1 / 0.25 = 40/10 = 4 Hz.
Answer: The period of the rotating disk is 0.25 s, the frequency is 4 Hz.
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