bonjour,
rappelons Vitesse=Distance/Temps
1er déplacement en bus
30km/h pendant 40minutes
40minutes=2400s
40minutes= 2/3h
Distance BUS
30*2/3=20km
2émé à pied
600m en 1/6h
1/6h =3600/6=600s
V= 600*1/6
V=600x6
V=3600m/h soit 3.6km/h
3émé TER
12m/s pendant 1h
1h=3600s
12x3600=43200m
4émé pied
5km pendant 12minutes
12minutes=720secondes
12minutes=1/5H
D=5*1/5=1km=1000m
Distance totale= Distance(BUS+PIED1+TRE+MARCHE)
D T = 20000+600+43200+1000
Distance totale =64800m ou 64.800km
il a
64.8km à faire pour aller chez ses parents
Temps
BUS:40minutes=2400s
pied:16/h=600s
atente315s
TER=1h=3600s
marche:12minutes=720s
Temps=7635s
vitesse=64800/7635=8.5m/s
8/5*3600=30600m/h=30.6km/h
