A) 10 m/s2
B) 16 m/s2
C) 25 m/s2
D) 32 m/s2
Correct Answer: D
Solution :
\[s=3{{t}^{3}}+7{{t}^{2}}+14t+8\ m\] \[a=\frac{{{d}^{2}}s}{d{{t}^{2}}}=18t+14\] at \[t=1\ \sec \Rightarrow a=32m/{{s}^{2}}\]
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