\(s\left(t\right)=3t^3+5t+2\)
=>\(v\left(t\right)=s'\left(t\right)=3\cdot3t^2+5=9t^2+5\)
=>\(a\left(t\right)=v'\left(t\right)=9\cdot2t=18t\)
\(v\left(1\right)=9\cdot1^2+5=14\left(\dfrac{m}{s}\right)\)
\(a\left(1\right)=18\cdot1=18\left(\dfrac{m}{s^2}\right)\)