Odpowiedzi

2010-03-22T10:42:57+01:00
M = 10 kg
t = 5 s

Δh = S = gt²/2 = 10*5²/2 = 250/2 = 125 m
ΔEp = m * g * Δh = 10 * 10 * 125 = 12500 J = W
P = W/t = 12500/5 = 2500 W