Bonjour,
vitesse=distance/temps
a. v=28/4=7 km/h
b. v=48/8=6 m/s
c. v=7/20=0,35 km/min
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Bonjour,
vitesse=distance/temps
a. v=28/4=7 km/h
b. v=48/8=6 m/s
c. v=7/20=0,35 km/min