Bantu ngerjain soal ini no 9-10​

9.

Fa/Fb = Aa/Ab

4N / Fb = 20 m² / 200 m²

4N /Fb = 1/10

4N . 10 = Fb . 1

40 N = Fb

10.

Pressure hidro (Ph) = Rho (Massa jenis) . Gravitation (g) . High (Kedalaman)

Ph = (0,2 Kg / Cm³ = 0,2 kg / 1 / 1.000.00 m³) . 10 m/s² . (4 Cm = 4/100 m)

Ph = (0,2 Kg . 1.000.000/1 m³) . 10 m/s² . 4/100 m

Ph = 200.000 kg/m³ . 10 m/s² . 4/100 m

Ph = 8.000 kg/m³ . 10 m/s²

Ph = 80.000 kg . s²/m²

Ph = 80.000 N/m²