Physical Quantities

Question

A piece of metal 2mm x 5 cm x 1.5 m and its mass is 1.35 kg. Calculate:

the volume of the metal piece in

the density of the material in

Answer 1

Solution:

The volume of the metal object is the the multiplication of the 3 sides. First convert every thing to meters

2mm ( m/1000mm) = 0.002 m

5cm ( m/100cm) = 0.05 m

The volume V = (0.002 m) ( 0.05m) (1.5m) = 0.00015 m³

The Density D = M/V = 1.35 kg/ 0.00015m³ = 9000 kg/m³