Quien resolver problema de calculo integral. Aplicado matemáticas,

;)
Bueno si es de calculo integral, nos pedirán laposición

$$\begin{align}&s(t)= \int v(t)dt\\&\\&si\  \ 0\leq t\leq40\\&\\&s(t)= \int \frac t {20}dt=  \frac 1  {20} \frac {t^2}{2}= \frac {t^2}{40}\\&\\&si\  \ 40\leq t\leq60\\&\\&s(t)= \int 2dt=2t\\&\\&si\  \ t>60\\&\\&s(t)= \int 5 -\frac t {20}dt=5t-\frac {t^2}{40}\\&\\&\end{align}$$