Question

A cubical block of mass 4.0 kg and side 20 cm. Calculate the density of the block

Answer 1

Answer:

Density of the block = 500 kg/m3

Explanation:

Mass = 4 kg

Side = 20 cm = 0.2 m

Volume of cube = s3 = (0.2)3 = 0.008

Formula used:

 Density = Mass / Volume

Solution:

Density = 4 / 0.008

            = 500 kg/m3

Density of the block = 500 kg/m3

Answer 2

Answer:

If a cubical block of mass 4.0 kg and side 20 cm then the density of the block is $500 kg/m^3$.

Explanation:

Given:

Mass = 4.0 kg

and Side$= 20 cm = 0.2 m$

Volume of cube = $Side^3 = (0.2)^3 = 0.008 = \frac{8}{100}$

Density = Mass/volume  

$= 4/0.008 = 500 kg/m^3$