V=18km/h=5m/s
a=0,25m/s
V=a*t
5m/s=0,25m/s2*t
t=5m/s : 0,25 m/s2
t=20s
S=at2/2
S=0,25*20*20/2
S=50m
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V=18km/h=5m/s
a=0,25m/s
V=a*t
5m/s=0,25m/s2*t
t=5m/s : 0,25 m/s2
t=20s
S=at2/2
S=0,25*20*20/2
S=50m