Question

a velocidade madia de um carro e de 72km h. em quanto tempo ele ando 36km

Answer 1

Olá !

Resolução :

$Vm =\dfrac{\Delta~~S}{\Delta~~T} \\\\\\ \dfrac{72}{1} =\dfrac{36}{\Delta~~T} \\\\\\ 72\Delta~~T = 1\cdot36 \\\\\\ 72\Delta~~T = 36 \\\\\\ \Delta~~T =\dfrac{36}{72} \\\\\\ \Delta~~T =\dfrac{1}{2}~~H$

Resposta :

$\boxed{\dfrac{1}{2}~~H}}}$

Ou

0,5 Horas.

Answer 2

t=∆s/t

t=36/72

t=18/36

t=9/18

t=1/2

t=0.5h

espero ter ajudado!

boa tarde!