Question

Consider the following where s is in feet and t is in seconds.
s(t) = t^3 + 4t^2 + 6t + 4


(a) Find v(t).
v(t) =


(b) Find a(t).
a(t) =


(c) Find v(3).


(d) Find a(3).

v(t) is the first derivative of s(t).
a(t) is the second derivative of s(t).

I will be happy to critique your work or thinking.

thanks!