Odpowiedzi

2010-01-23T19:21:13+01:00
S= 50m
S=at²/2
a=331
t²=2S/a

t²=100/331
t=0,54s
29 4 29
2010-01-23T19:24:26+01:00
H=50m
a=331m/s²
s=½at²<=>t=√(2s/a)
t=√100m/331m/s²=0,55s