Odpowiedzi

2010-03-18T19:57:06+01:00
T=1min=60s
s=7,2km=7200m

s=½at² a=2s/t²
a=2*7200/3600=4
a=4m/s²
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2010-03-18T20:01:21+01:00
Dane:
t = 1min = 60s
s = 7,2 km = 7200m
Szukane:
a = ?

s=at²/2 ×2
s2=at² :t²
s2/t²=a [m/s²]
a=7200×2/60² = 4
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