Odpowiedź:
a) 36km/h = 36:3,6 = 10 m/s
b) 90km/h = 90:3,6 = 25 m/s
Wyjaśnienie:
1 m = 1/1000 km
1 km = 1000 m
1 s = 1/3600 h
1 h = 3600 s
zamiana km/h -> m/s
x km/h -> m/s -> x* 1km/1h = x* 1000m/3600s = 1000x/3600 m/s = x/3,6 ms
v[km/h] :3,6 = v [m/s] np. 36km/h:3,6 = 10 m/s
zamiana m/s -> km/h
x m/s -> km/h -> x* 1m/1s = x * (1/1000)km / (1/3600)h = x*3,6 km/h
v[m/s] ·3,6 = v [km/h] np. 10 m/s · 3,6 = 36 km/h
