Odpowiedzi

2009-11-24T00:20:04+01:00
Vk = 108 km/h = 30 m/s
Vp = 5 m/s

Vk = Vp + at
30 = 5 + 2t
2t = 25
t = 12,5 s

a = ΔV/t = 25/12,5 = 2 m/s²

S = Vp*t + at²/2 = 5*12,5 + 2*12,5²/2 = 218,75 m