Odpowiedź:
V=s/t
V- prędkość
s- droga
t-czas
1. t=15/60h=1/4h
V=s/t |*t
s=v*t
s=36*1/4=9km
2. t=60s
s=2*60=120m
3.V=s/t
V=250/5
V=50km/h
4.t=1/2h
V=24*1/2=12km/h
5.V=s/t
t=s/v
s=0,25km
t=0,25/3
t=1/12h
6.t=s/v
t=400/10
t=40s
