Question

Oblicz prędkość roweru,który w ciągu 5 minut pokonuje 3 km.

Answer 1

Dane:
t=5min = 5*60s=300s
3km = 3000m
Szukane:
v
Roz.
v = s/t
v=3000m/300s=10m/s
10m/s = 10* 1/1000/1/3600 km/h= 10*1/1000*3600km/h= 36km/h

Answer 2

3km/5min
5min*12=1godz
3*12=36
wiec
36km/h
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