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A1 = 4cm²
A2 = 80cm²
F2 = 1 ton = 1000 kg
Dit: F1.........?
F1/A1 = F2/A2
F1/4 = 1000/80
80F1 = 1000 x 4
80F1 = 4000
F1 = 4000/80
F1 = 50N
Gaya pd penghisap kecil = 50N