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Sagot :

LEAFE

Bonjour,

Distance = 280 km = 280 x 1000 = 280 000 m

Temps = 1h 24 min = 60 + 24 = 84 minutes

Temps = 84 x 60 = 5040 secondes

v = d / t = (280 000) / (5040) = 55,55 m/s

v = 55,55 x 3,6 = 199,98 km/h

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