Question

3. Volume of metal cube is 150 cm3 If the
density of the metal cube is 4.5 gcm3.
find the mass of metal cobe in SI unit.​

Answer 1

Answer:

Mass of metal cube= density * volume

So, mass=(150*4.5) /1000

mass=675/1000

mass=0.675 kg

Answer 2

Explanation:

Answer:

• Volume = 150 cm³

• Density = 4.5 gm/cm³

• Mass of Metal Cube = ?

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SI unit of Mass is Kg :

⠀

$\underline{\bigstar\:\textsf{According to the given Question :}}$

$:\implies\sf Density=\dfrac{Mass}{Volume}\\\\\\:\implies\sf 4.5\:gm\:cm^{-3}=\dfrac{Mass}{150\:cm^3}\\\\\\:\implies\sf 4.5\:gm\:cm^{-3} \times 150\:cm^3 = Mass\\\\\\:\implies\sf 45\:gm \times 15 = Mass\\\\\\:\implies\sf 15 \times 3 \:gm \times 15 = Mass\\\\\\:\implies\sf 225 \times 3 \:gm = Mass\\\\\\:\implies\sf Mass = 675 \:gm\\\\\\:\implies\sf Mass = 675 \times \dfrac{1}{1000} \:Kg\\\\\\:\implies\underline{\boxed{\sf Mass = 0.675 \:Kg}}$

⠀

$\therefore\:\underline{\textsf{Mass of the solid cube is \textbf{0.675 Kg}}}.$