Odpowiedzi

2009-12-07T19:55:25+01:00
V=36km/h=10m/s
t=5s

a=V/t=2m/s²
s=at²/2=2*5²/2=25m
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2009-12-07T19:56:15+01:00
V0 = 36 km/h = 10 m/s
t = 5s
v = 0
a = ?
S = ?

a = v0/t = -10/2 = 2 m/s²
S = v0t - 1/2 * at² = 10*5 - 1/2 * 2 * 25 = 50 - 25 = 25 m
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