benda diudara mempunyai berat 60N didalam air menjadi 40N. berapa volume benda tersebut

ud = udara, a = air , b = benda

Wud = 60 N
Wa = 30 N
g = 10 m/s²
pa = 1000 kg/m³
PB = .....?

Massa benda
Wud = m g
60 = m. 60
m = 6 kh
volume benda
Fa = pa g V
Wud - Wa = pa g V
60 - 36 = 10³ . 10 . V
24 = 10⁴.V
v = 24×10⁴ m3

massa jenis benda
pb = m/V
pb = (6kg) / (24×10⁴ m³)
pb = 2500 kg/m3