1. sejumlah air bermassa 1 kg dan massa jenisnya 1 gram/cm3. berapa volume air tersebut??

Penyelesaian:

Dik: m = 1 kg
P (massa jenis) = 1 gr/cm³ = 1000 kg/m³

V...?

Jawab

P = m/v
v = m/p
= 1/1000
= 10^-3 m³

m = 1 kg = 1000 kg
ρ = 1 gr/cm³ = 1000 kg/m³
V = __?

volume benda
ρ = m / V
→ V = m / ρ

V = (1000 gr) / (1 gr/cm³)
V = 1000 cm³ = 0,001 m³

atau
V = (1 kg) / (1000 kg/m³)
V = 0,001 m³ = 1000 cm³