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a. KM = Lk/Lb
b. L = 2 m
Lk = 0,5 m
Lb = L - Lk
= 2 - 0,5
= 1,5
KM = Lk/Lb
= 0,5 / 1,5
= 1/3
c. m = 150 kg
F x Lk = W x Lb
F x 0,5 = (mxg) x 1,5
F x 0,5 = (150 x 10) x 1,5
F x 0,5 = 2.250
F = 2.250/0,5
F = 4.500 N