A pendulum bob on a \( 2 \mathrm{~m} \) string is displaced \( 60^{\circ} \) from the vertical a...

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A pendulum bob on a \( 2 \mathrm{~m} \) string is displaced \( 60^{\circ} \) from the vertical and then released. What is the speed of the bob as it passes through the lowest point in its path [JIPMER 1999]
(a) \( \sqrt{2} \mathrm{~m} / \mathrm{s} \)
(b) \( \sqrt{9.8} \mathrm{~m} / \mathrm{s} \)
(c) \( 4.43 \mathrm{~m} / \mathrm{s} \)
(d) \( 1 / \sqrt{2} \mathrm{~m} / \mathrm{s} \)
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