Odpowiedzi

2010-02-27T20:42:41+01:00
A=v/t 216 km/h=216000/3600=60m/s
a=60/10=6m/s

s=(at^2)/2
s=(6*100)/2=600/2=300 m
2010-02-27T20:43:16+01:00
Dane:
V = 216 km/h = 216 000 m / 3600 s = 60 [m/s]
t = 10 s
Rozw. V₀ = 0 więc
a = V/t = 60 [m/s] / 10 s = 6 [m/s²]
S = at²/2 = 6 [m/s²] × (10 s)² / 2 = 300 m
2010-02-27T20:50:39+01:00
216km/h=60m/s
a jest to przyśpieszenie
a=Vk-Vp:t
a=216km/h-0km/h:10s=6m/s²

s jest to droga
s=(a×t²):2
s=6m/s²×100s²:2=300m