Question 19.14: The vibration of a component in a machine is represented by ...
The vibration of a component in a machine is represented by the equation: x = 3.0 × 10^{−4} sin (240πt) where the displacement x is in metres. Determine the a amplitude, b frequency and c period of the vibration
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a 3 × 10^{−4} m (0.3 mm)
b Frequency = \frac{240 \pi}{2 \pi} = 120 Hz
c Period = \frac{1}{f} = \frac{1}{120} = 8.3 \times 10^{-3} s
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