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The \( \mathrm{x}-\mathrm{t} \) graph of a particle undergoing simple harmonic motion is shown below. The
\( \mathrm{P} \) acceleration of the particle at \( t=\frac{4}{3} s \) is :-

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(1) \( \frac{\sqrt{3}}{32} \pi^{2} \mathrm{~cm} / \mathrm{s}^{2} \)
(2) \( \frac{-\pi^{2}}{32} \mathrm{~cm} / \mathrm{s}^{2} \)
(3) \( \frac{\pi^{2}}{32} \mathrm{~cm} / \mathrm{s}^{2} \)
(4) \( -\frac{\sqrt{3}}{32} \pi^{2} \mathrm{~cm} / \mathrm{s}^{2} \)
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