W = Fs
F = mg
W = mgs
s = 90cm = 0,9m
m = 70kg
W = 70kg x 10N/kg x 0,9m = 630J
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Pozdrawiam :)
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W = Fs
F = mg
W = mgs
s = 90cm = 0,9m
m = 70kg
W = 70kg x 10N/kg x 0,9m = 630J
----------------------------------------------------------------------------------------------------
Litterarum radices amarae sunt, fructus iucundiores
Pozdrawiam :)