Odpowiedź:
Wyjaśnienie:
t=30 min = 1800s = 0,5h
s= 2,5 km = 2500 m
v=s/t
v=2500/1800=1,4 m/s =
v=2,5/0,5=5 km/h
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Odpowiedź:
Wyjaśnienie:
t=30 min = 1800s = 0,5h
s= 2,5 km = 2500 m
v=s/t
v=2500/1800=1,4 m/s =
v=2,5/0,5=5 km/h