Jawabanmu

2014-04-06T17:42:49+07:00
2014-04-06T17:48:20+07:00
W = m . g
W berat benda
m massa
g percepatan gravitasi 
W = 50
W = 5 kg. 10  m/s^2

FA = gaya apung 
FA =Pa.g.V
Pa = 
massa jenis air
g = percepatan gravitasi
V = volume 

W' = W - FA
25 = 50 - FA
FA = 25