Motion of a particle is given by equation \( s=\left(3 t^{3}+7 t^{2...

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Motion of a particle is given by equation \( s=\left(3 t^{3}+7 t^{2}+14 t+8\right) \mathrm{m} \). The value of acceleration
P of the particle at \( t=1 \mathrm{sec} \) is
(a) \( 10 \mathrm{~m} / \mathrm{s}^{2} \)
(b) \( 32 \mathrm{~m} / \mathrm{s}^{2} \)
W
(c) \( 23 \mathrm{~m} / \mathrm{s}^{2} \)
(d) \( 16 \mathrm{~m} / \mathrm{s}^{2} \).
\( (2000) \)
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