Jawabanmu

2014-02-04T18:22:21+07:00
F1 = gaya pd bgn besar = 1500 N
F2 = gaya pd bgn kecil = ?
R1 = 5 , A1 = π R² = π 25
R2 = 1, A2 = π R² = π
F1/A1 = F2/A2
1500/25 π = F2 / π
F2 = 60 N