V = 2,5 m^3
d = 2,2 g/cm^3 = 2200 kg/m^3
h = s = 16 m
g = 9,81 m/s^2=10 m/s^2
W = ?
W = Fs
F = m * g
W = m g * s
d = lub ro = m/V
m = d * V
**W = d * V g s
W = 2200 kg/m^3 * 2 m^3 * 10 m/s^2 * 16 m
W = 704000 J = 704 kJ
[kg*m/s^2] = [ N ]
[N * m] = [ J]