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Diketahui :
W = 4000 N
n = 4 katrol
Ditanyakan : F ?
Dijawab :
km = n katrol = 4
Jadi :
KM = W/F
F = W/KM
= 4000/4
= 1000 N
Nomor 27
Diketahui :
A1 = 5 cm2
A2 = 2000 cm2
W = 25.000 N
Ditanyakan : F ?
Dijawab :
F/W = A1/A2
F/25.000 = 5/2000
F/25.000 = 1/400
F = 25000/400
F = 62,5 N
jawaban A