Odpowiedzi

2009-03-24T23:15:49+01:00
(mv²)/2 = mgh
v² = 2gh
h = v²/2g

Podstaw v = 400km/h = 111,(1)m/s
v² ≈ 12345m²/s²
g = 10m/s²
h ≈ 12345 m²/2s²(10m/s²) = 12345 m / 20 = 617,25 m.