The density of rock = 5 g/cm³
Given
Volume of rock=20 cm³
Mass = 100 g
Required
Density
Solution
Density is a quantity derived from the mass and volume
Density is the ratio of mass per unit volume
The unit of density can be expressed in g/cm³ or kg/m³
Density formula:
[tex]\large {\boxed {\bold {\rho ~ = ~ \frac {m} {V}}}}[/tex]
ρ = density
m = mass
v = volume
Input given values in formula
[tex]\tt \rho=\dfrac{mass~of~rock}{volume~of~rock}=\dfrac{100~g}{20~cm^3}=5~g/cm^3[/tex]
