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a cuboidal object of side 15 cm weights 1.35 kg. calculate its density in kg/cu m?

Mass (m) = 1.35 kg

Side (a) = 15 cm = 0.15 m

Volume of a cube = side x side x side = 0.153 = 0.003375 cu. M

Density (ρ) = Mass (m) / Volume (V)

=> ρ = 1.35/0.003375

=> ρ = 400 Kg/m3

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15 * 15 * 15 = 3375

3375 / 1.35 = 2500 kg / cu m

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verma.kirti111

I THINK YOU'VE DONE IT JUST REVERSE.

ANSWER:VOLUME OF THE CUBOID = 15 cm  * 15 cm * 15 cm=3375 cm3 =0.003375 m3  

DENSITY =MASS/VOLUME=1.35 kg / 0.003375 m3=1350000 kg / 3375 cu. metre

  = 400 kg / cm3 (ANSWER)

  BY SHIVASIS

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