Ile energii trzeba dostarczyć do dźwigu o sprawności 55% aby uniósł 450kg na wysokość 25m?
m = 450kg
h = 25m
E = mgh
E = 450kg x 25m x 10N/kg = 112500J
112500J x
--------------- = -----------
55% 100%
x ≈ 204545J
----------------------------------------------------------------------------------------------------
Litterarum radices amarae sunt, fructus iucundiores
Pozdrawiam :)
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m = 450kg
h = 25m
E = mgh
E = 450kg x 25m x 10N/kg = 112500J
112500J x
--------------- = -----------
55% 100%
x ≈ 204545J
----------------------------------------------------------------------------------------------------
Litterarum radices amarae sunt, fructus iucundiores
Pozdrawiam :)