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= 90 m/ 0,75 mnt (45 sekon)
= 90m /45 s
= 2 m/s
2. t = s/v
= 0,3 km (300 m) / 1 m/s
= 300 s = 5 menit
v = s : t
= 90 :45
= 2 m/s
2. s = 0,3 km = 300 m
v = s : t
1 = 300 : t
300 sekon = t
5 menit = t