Ep = W
Dane
m = 500kg
h = 20m
g = 10m/s²
t = 30s
Szukane
W = ?
P = ?
Wzory
[tex]W = mgh[/tex]
[tex]P = \frac{W}{t} [/tex]
Obliczenia
[tex]W = 500 \times 20 \times 10 = 500 \times 200 = 100000J = 100kJ[/tex]
[tex]P = \frac{100000}{30} = 3333 \frac{1}{3} W[/tex]