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300cm/s= 3000m/s
36km/h= 360000 ? chyba
20m/s= 20 km/h
b)300 cm/s=30000m/s
c)36 km/h=10m/s
d)20 m/s=72km/h
c i d to są na 100% dobrze:) ale nie jestem pewna dwóch pierwszych:D
1s-1m
b) 1s-300cm
1s-3m
c)36km-1h
36000m-1h
10m-1s
d) 1s-20m
1h-72km