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s - droga = 20 cm = 0,2 m
W - praca = Fs = 50 razy 0,2 = 10 Nm = 10 J
MI SIE WYDAJE ŻE ENERGIA TO DŻULE A WATY TO PRACA DO TEJ WYŻEJ
F = siła = 50N
s = droga = 20cm = 0,2 m
Szukane:
W=?
W= F*s
W= 50N * 0,2 m
W= 10 J