Odpowiedzi

2010-01-15T14:57:30+01:00
P = 200W
t = 1h = 3600 s
m = 80kg
W = P x t = 720000 J

W = mgh
g = 10m/s
h = W/mg = 720000/(80 x 10m/s)
h = 720 000 / 800
h = 900m