Question

Um trem viaja com velocidade constante de 125km/h. Quantas horas ele gasta para percorrer 1250 km?

Answer 1

$\large\boxed{\boxed{\begin{array}{l}\sf V_m=\dfrac{\Delta S}{\Delta t}\iff\Delta t=\dfrac{\Delta S}{V_m}\\\\\sf \Delta t=\dfrac{1250}{125}\\\\\sf\Delta t=10\,h\end{array}}}$