What is the velocity of the bob of a simple pendulum at its mean position, if it is able to rise...

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What is the velocity of the bob of a simple pendulum at its mean position, if it is able to rise to vertical height of \( 10 \mathrm{~cm} \) (Take \( g=9.8 \mathrm{~m} / \mathrm{s}^{2} \) )
(a) \( 0.6 \mathrm{~m} / \mathrm{s} \)
(b) \( 1.4 \mathrm{~m} / \mathrm{s} \)
(c) \( 1.8 \mathrm{~m} / \mathrm{s} \)
(d) \( 2.2 \mathrm{~m} / \mathrm{s} \)
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