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Cat inseamna 72 km/h in m/s?

Răspuns :

[tex]1 \ km/h=3,6 \ m/s \\ \Rightarrow72 \ km /h= \frac{72 \ km/h}{3,6 \ m/s} =\boxed{20 \ m/s}.[/tex]
72 km/h=72000m/3600s=720m/36s=20m/s;