Resposta :
[tex]\large\boxed{\begin{array}{l}\sf dados\begin{cases}\sf\Delta\,s=250\,m\\\sf\Delta\,t=2\,min=120\,s\\\sf v=?\end{cases}\\\rm v=\dfrac{\Delta\,s}{\Delta\,t}\\\\\rm v=\dfrac{250}{120}\\\\\rm v=2,08\,m/s\end{array}}[/tex]
[tex]\large\boxed{\begin{array}{l}\sf dados\begin{cases}\sf\Delta\,s=250\,m\\\sf\Delta\,t=2\,min=120\,s\\\sf v=?\end{cases}\\\rm v=\dfrac{\Delta\,s}{\Delta\,t}\\\\\rm v=\dfrac{250}{120}\\\\\rm v=2,08\,m/s\end{array}}[/tex]