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m = 5 kg
h = 9 m
t = 1
Calculamos:
E = P (h) (n)
E = 5 Kg ( 9m) (1000)
E= 45000 Kgm
Pasamos las unidades el SI (Joules)
E = (45000 kgm) ( 9,8 J) /kgm
E = 441000 J
Ahora si calculamos la potencia.
1 hora = 3600 segundos
W = E /t
W= 441000 J /3600 s
W = 122,5 wa
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