sepotong balok kayu mengapung diatas air, 60 % volumenya tenggelam. Bila volume balok itu 4000 cm3, maka massa balok kayu ..... kg
a) 3,0
b) 2,4
c) 1,8
d) 1,2
e) 0,8
tolong di bantu ya teman2 :) beserta pembahasannya :) terimakasih.
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MASSA = apung : g
=60%: 10
=0,06
klw mnrutku
v = volum
w = Fa
Pb x Vb = Pf x Vf
Pb x4000= 60% x 4000
Pb = 2400/4000
Pb = 0,6 g/cm3
lalu P =M/V
0,6= m/4000
m = 2400 g/cm3= 2,4 kg