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The acceleration a in \( \mathrm{ms}^{-2} \) of a particle is given by \( a \) \( =3 t^{2}+2 t+2 \), where \( t \) is the time. If the particle starts
\( \mathrm{P} \) out with a velocity \( u=2 \mathrm{~ms}^{-1} \) at \( t=0 \). then find the

W velocity at the end of \( 2 \mathrm{~s} \).
(1) \( 16 \mathrm{~m} / \mathrm{s} \)
(2) \( 18 \mathrm{~m} / \mathrm{s} \)
(3) \( 36 \mathrm{~m} / \mathrm{s} \)
(4) \( 9 \mathrm{~m} / \mathrm{s} \)
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