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Sagot :

Bonjour,

[tex]v = \frac{d}{t} \\ t = 10s \\ d = 4m \\ \\ v = \frac{4}{10} = 0.4m/s \\ \\ 0.4 \times 3.6 = 1.44km/h[/tex]

La vitesse de la locomotive est de 0.4 m/s ou 1.44km/s .

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