Question

qual a velocidade escalar média em, m/s , de a pessoa que percorre a pé, 1200 m em 20s
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Answer 1

Vamos lá!

Vm = ∆s/∆t

Vm = 1200/20

Vm = 60 m/s

Espero ter ajudado!!

Answer 2

$\Large\displaystyle\text{ \begin{gathered} \sf{V_m=\frac{\Delta S}{\Delta t} } \end{gathered} }$

$\Large\displaystyle\text{ \begin{gathered} \sf{ V_m=\frac{1200\,m}{20\,s}} \end{gathered} }$

$\Large\displaystyle\text{ \begin{gathered} \boxed{\boxed{\sf{ V_m=60\,m/s}}} \end{gathered} }$