Chapter 4.6, Problem 2QCE

Suppose that a particle moving along the $s\text{-axis}$ has position function $s\left(t\right)=7t-2t^2$ . At time $t=3,$ the particle’s position is $\text{\_\_\_\_\_\_\_\_,}$ its velocity is $\text{\_\_\_\_\_\_\_\_,}$ its speed is, $\text{\_\_\_\_\_\_\_\_,}$ and its acceleration is $\text{\_\_\_\_\_\_\_\_}$ .