Two cubes of side 20 cm each, having20 kg and 10 kg of mass. find the

1.	Two cubes of side 20 cm each, having20 kg and 10 kg of mass. find the density of cubes. Are they madematerial? Justify your answer.
Answer» ★ $\large\color{red} \mathrm{Hey \: There!}$ ★ Edge of each cube = 20cm => VOLUME of each cube = (20)^3 = 800cm^3 Mass of CUBE1 = 20kg Mass of CUBE2 = 10kg. Thus, ★ Density of Cube1 :- m = 20 kg V = 800cm^3 => Density (d1) = m/V d1 = 20/800 d1 = 1/40 => d1 = 0.025 kg/cm^3 ★ Density of Cube2 :- m = 10 kg V = 800cm^3 => Density (d2) = m/V d2 = 10/800 d2= 1/80 => d2 = 0.0125 kg/cm^3 Here, d1 ≠ d2, therefore, we can CONCLUDE that both cubes are made from different materials.

Two cubes of side 20 cm each, having20 kg and 10 kg of mass. find the density of cubes. Are they madematerial? Justify your answer.

Answer»

★ $\large\color{red} \mathrm{Hey \: There!}$ ★

Edge of each cube = 20cm

=> VOLUME of each cube = (20)^3 = 800cm^3

Mass of CUBE1 = 20kg

Mass of CUBE2 = 10kg.

Thus,

★ Density of Cube1 :-

m = 20 kg

V = 800cm^3

=> Density (d1) = m/V

d1 = 20/800

d1 = 1/40

=> d1 = 0.025 kg/cm^3

★ Density of Cube2 :-

m = 10 kg

V = 800cm^3

=> Density (d2) = m/V

d2 = 10/800

d2= 1/80

=> d2 = 0.0125 kg/cm^3

Here, d1 ≠ d2, therefore, we can CONCLUDE that both cubes are made from different materials.

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Two cubes of side 20 cm each, having20 kg and 10 kg of mass. find the density of cubes. Are they madematerial? Justify your answer.​