Odpowiedzi

2010-03-01T16:12:46+01:00
T = 2 min = 120 s
v1 = 50 km/h = 125/9 m/s
v2 = 70 km/h = 175/9 m/s

a = Δv/Δt
a = (50/9)/120 = 5/108 = 0.04(629) m/s