Odpowiedzi

2010-02-13T16:34:36+01:00
200m = 0.2 km
3h= 10800 s
20 km/h=5.5 m/s
35m/s =126 km/h
7 2 7
2010-02-13T16:35:28+01:00
200m=0,2km
30h=108000s
20km/h=20*1000/3600≈5,56m/s
35m/s=35*0,001*3600=126km/h
2010-02-13T16:48:28+01:00
200m to 0,2km
30h to 108000s
20km/h to 5,5m/s
35m/s to 126km/s
albo cos pomyliłam