If the velocity of a particle is given by \( v=(180-16 x)^{1 / 2} \) \( \mathrm{m} / \mathrm{s} ...

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If the velocity of a particle is given by \( v=(180-16 x)^{1 / 2} \) \( \mathrm{m} / \mathrm{s} \), then its acceleration will be
[J \& K CET 2004; Odisha JEE 2012]
(a) Zero
(b) \( 8 \mathrm{~m} / \mathrm{s}^{2} \)
(c) \( -8 \mathrm{~m} / \mathrm{s}^{2} \)
(d) \( 4 \mathrm{~m} / \mathrm{s}^{2} \)
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