Odpowiedzi

2010-01-19T18:33:15+01:00
T = 10 min = 1/6 h
v = ?
s = 1200 m = 1,2 km

v = s/t
v = 1,5/ (1/6) = 7,2 km/h = 2 m/s
2 4 2
2010-01-19T18:33:48+01:00
10min=60*10=600s
1200m/600s=2m/s
1 5 1
2010-01-19T18:33:58+01:00