A simple pendulum performs simple harmonic motion about x = 0 with an amplitude a and time period T. The speed of the pendulum at x = a/2 will be

Question

${{\pi a} \over T}$

${{3{\pi ^2}a} \over T}$

${{\pi a\sqrt 3 } \over T}$

${{\pi a\sqrt 3 } \over {2T}}$

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