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Dik = Vb = 50 x 40 x 30 = 60.000
ρb = 0,8 gr/cm³ ⇒ 800 kg/m³
ρair = 1 gr/cm³ ⇒ 1000 kg/m³
Dit = v di permukaan?
⇒ ρb = (pb = itu massa jenis benda) (Vtc = vol benda tercelup)
⇒ 800 = . 1000 (tiga nol coret aja)
800 =
x = 60 x 800
= 48.000
V di permukaan = 60.000 - 48.000
= 12.000
= 12 x 10 (pangkat - 3
Fa=W
pa x Va = pb x Vb
1 x (75/100)Vb = pb x Vb
pb=75/100=0.75 gr/cm3
massa balok= pb x Vb
0,75 x 5000
= 3750 gr
= 3,75 kg