Page 28 - E-modul Fluida Statis Berorientasi Problem Based Learning

20 = 2
1 2 2 2
20 1 2
= ቀ ቁ
2 2
20 1 2
= ቀ ቁ
2 10
20 1
= ቀ ቁ
2 100
1 . F2 = 20 . 100
F2 = 2000 N

4. Diketahui :
3
ρminyak = 0,8 g/cm
Ditanyakan :
ρb = … ?
Jawab :
FA minyak + FA air = W benda
Ρminyak . g . Vbm + ρair . g .Vba = ρb . g . Vb
0,8 . 10. 0,3Vb + 1. 10 . 0,5 Vb = ρb . 10. Vb
0,24 + 5 = ρb
3
ρb = 0,74 g/cm