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Verified answer
Dik: A1= 20 cm²A2= 60 cm²
A3= 80 cm²
F1= 20 N
dit: F2 & F3?
jwb: F1/A1 = F2/A2 = F3/A3
1) F1/A1 = F2/A2
20/20 = F2/60
F2= 1200/20
F2= 60 N
2) F2/A2 = F3/A3
60/60 = F3/80
F3= 4800/60
F3= 80 N
(maaf klo salah)