A piece of wood of dimensions 1 m by 2 m by 3 m has mass of 2 kg. What is the density of wood? Would the wood float in water? ( $d_{w a t e r}$ = 1000 $\frac{k g}{(m^{3})}$ )

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Standard VII Physics

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A piece of wood is 3 m long, 2 m wide, and has a thickness of 1 m. Find the density, if its mass is 2 kg.

The correct option is A 0.33 kg/m3 Volume of the wood (cuboid) is given by the product of its dimensions. V=1×2×3 m V=6 m3 Density of wood is given by: ρ=MV where: M: Mass of wood ρ=2 kg6 m3 ρ=0.33 kgm3

The correct option is A
$0.33 k g / m^{3}$

Volume of the wood (cuboid) is given by the product of its dimensions.
$V = 1 \times 2 \times 3 m$
$V = 6 m^{3}$

Density of wood is given by:
$ρ = \frac{M}{V}$
where:
$M : Mass of wood$

$ρ = \frac{2 k g}{6 m^{3}}$
$ρ = 0.33 k g m^{3}$