Odpowiedzi

2009-11-16T20:52:06+01:00
S=75m
t=15s
s=V₀t-at²/2
V₀=at
s=at²-at²/2
s=at²/2
a=2s/t²=2*75:15²=0,66m/s²
V₀=at=0,66*15=9,99 m/s