Question

repede va rog!!!
transforma in SI:
30min=
80km/h=
2h20min=
20km=
12km=
220dm/min=
va rog mult!!!​

Answer 1

In SI, lungimea se masoara in metri, timpul in secunde, viteza in m/s

1 ora = 3600 s

1 min = 60 s

1 km = 1000 m

1 dm = 0,1 m

30 min = 30 x 60 = 1800 secunde

80 km/h = 80 000 m / 3600 s = 22,22 m/s

2h20 min = 2 x 3600 + 20 x 60 = 8 400 s

20 km = 20 x 1000 = 20 000 m

12 km = 12 x 1000 = 12 000 m

220 dm /min = 22 m /60 s = 0,366 m/s