Jawabanmu

2014-04-29T07:26:30+07:00
Menurut saya 5

*sorry kalau salah
1 3 1
2014-04-29T07:49:00+07:00
Ph = p × g × l
= 60 kg × 10m/s2 × 300 cm2
= 180.000 N/m3