Odpowiedź:
Wyjaśnienie:
s=1 km
t=30 s=30/3600 h=1/120 h
v=s/t
v=1 :1/120 km/h=1*120=120 km/h
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Odpowiedź:
Wyjaśnienie:
s=1 km
t=30 s=30/3600 h=1/120 h
v=s/t
v=1 :1/120 km/h=1*120=120 km/h