A potato weighing 59 g has a volume of 50 cm3. Determine the density of the potatoes.

m = 59 g = 0.059 kg.

V = 50 cm3 = 0.00005 m3.

ρ -?

The density of a substance ρ is called a scalar physical quantity, which is equal to the ratio of the mass of a substance m to its volume V: ρ = m / V.

In order for the density of a substance ρ to be measured in units of the international SI system, it is necessary that the mass and volume be expressed in units of the SI system.

In 1 kg there are 1000 g, therefore m = 59 g = 0.059 kg.

In 1 m3 there are 1,000,000 cm3, therefore V = 50 cm3 = 0.00005 m3.

ρ = 0.059 kg / 0.00005 m3 = 1180 kg / m3.

This means that the potato mass, taken in a volume of V = 1 m3, will have a mass of m = 1180 kg.

Answer: the density of potatoes is ρ = 1180 kg / m3.