2-5 Two vibrations at right angles to one another are described by the equations \[ \begin{array}{l} x=10 \cos (5 \pi t) \\ y=10 \cos (10 \pi t+\pi / 3) \end{array} \]
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They are equations of simple harmonic motion, where x and y represent the displacement of the object at time t. The number in front of the cosine function (10 in this case) represents the amplitude of the motion, the number multiplying t inside the cosine function Show more…
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