If \( a=\left(3 t^{2}+2 t+1\right) \mathrm{m} / \mathrm{s}^{2} \) i...

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If \( a=\left(3 t^{2}+2 t+1\right) \mathrm{m} / \mathrm{s}^{2} \) is the expression according to which the acceleration of a particle varies. Then -
\( \mathrm{P} \)
\[
a=\left(3 t^{2}+2 t+1\right) \mathrm{m} / \mathrm{s}^{2}
\]
W
Find displacement of the particle after 2 seconds of start (initial velocity of particle is zero):
(A) \( 26 \mathrm{~m} \)
(B) \( 26 / 3 \mathrm{~m} \)
(C) \( 30 / 7 \mathrm{~m} \)
(D) \( 26 / 7 \mathrm{~m} \)
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