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m=?
Dane:
h=80cm
W=120 j
g=10 m/s
W=mgh/gh
m=W : gh
m= 120 : 10 x 80= 12: 80+ 0.15kg
Odp. Masa tego ciała wynosi 0.15kg
spoko jak masz jeszcze jakieś zadania to pisz :D