Bonjour,
30mn -> 6km
60mn - > 12km
=> 12km/h
12 km = 1 200m
1h = 3 600s
1 200m -> 3 600s
1 m -> 3 600/1 200
=> 3m/s
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Bonjour,
30mn -> 6km
60mn - > 12km
=> 12km/h
12 km = 1 200m
1h = 3 600s
1 200m -> 3 600s
1 m -> 3 600/1 200
=> 3m/s