Word Count : 216

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The frequency is ( f = 0.50 ,\text{Hz} ), so the angular frequency is ( \omega = 2\pi f = 2\pi \times 0.50 = \pi ,\text{rad s}^{-1} ). For SHM, the displacement and velocity at any instant satisfy ( v^{2} = \omega^{2}(A^{2} - x^{2}) ). At the initial instant, the displacement is ( x __________ __________ ___ _____ _______ ____ _________ ____ _____.
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