Odpowiedzi

2009-11-16T19:49:42+01:00
V₁ = 108 [km/h] = 30 [m/s]
V₂ = 36 [km/h] = 10 [m/s]
S = 110 [m]

z wzorów:
S = V₁t - ½at²
a = (V₁-V₂) / t

otrzymujemy:
t= 2S / (V₁+V₂)
t = 110 / 40 = 2,75 [s]

a = (V₁-V₂) / t
a = 20 / 2,75 = 7,(27) [m/s²]