Repetitive motions  (oscillations or vibrations)

Repetitive motion : a periodic motion about an equilibrium position

De distance x from the body to the equilibrium position is a function of time                                               

Amplitude A is the maximal distance from the body to the central position 

f = 1/T

  • Period  T       : duration of one oscillation (or vibration) in s
  • frequency f   :number of oscillations (or vibrations) per second  in Hz
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