Odpowiedzi

2009-11-24T21:54:02+01:00
Dane:
v = 108 km/h = 30m/s
t = 1min = 60s

Szukane:
s = ?
a = ?

Wzór:
S = V ∙ t
a = 2s / t2

Obliczenia:
s = 30 * 60 = 1800m
a = 3600/3600 =1 m/s²
2009-11-24T21:57:50+01:00
Przyśpieszenie:

1min=60sec

108km/h=30m/s

a=v/t

a=60/30=1/2

s=at2/2

s=1/2razy60(do kwadratu) :2

s=1/2razy3600:2

s=1800:2

s=900m