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h = 50 m
g = 10 m/s²
Szukane:
t = ?
Rozwiazanie:
s = ½gt² /*2
2s = gt² /:g
t² = 2s/g
t² = 2*50m / 10m/s²
t² = 100 / 10
t² = 10s²
t = √10s²
t = 3,2 s