Question

The volume of an object is 30cm³ and its mass is 210gm. find its density?​

Answer 1

Answer:

70 kg/m³

Explanation:

first converting given quantities into SI units

mass = 210 gm = 0.21 kg

volume = 30 sq.cm = 0.003 sq.m

density = mass / volume

density = 0.21 / 0.003

hence, density = 70 kg/m³

Answer 2

Given:

• Volume of an object = 30 cm³

• Mass of an object = 210 g

To find:

• Density of an object

~We know that

➜ D = m/v

~where

D = density

M = mass

V = volume

Solution:

➥ D = m/s

➥ D = 210 g/ 30 cm³

➥D = 7.0 g/cm³

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★More★

Mass = Density × Volume

Volume = Mass/Density

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