Question

Cat inseamna 72 km/h in m/s?

Answer 1

$1 \ km/h=3,6 \ m/s \\ \Rightarrow72 \ km /h= \frac{72 \ km/h}{3,6 \ m/s} =\boxed{20 \ m/s}.$

Answer 2

72 km/h=72000m/3600s=720m/36s=20m/s;