Question

Find the volume of a wooden cube whose side is 12 cm long and has a mass of 3.5 kg.

• A. 2508.8 kg/m³
• B. 2008.8 kg/m³
• C. 2058.8 kg/m³
• D. 205.88 kg/m³

Answer 1

The correct option is C

2058.8 kg/m³

Given: m = 3.5 kg, l = 12 cm = 0.12 m

To find the density of a cube first we need volume of a cube. We calculate it using the formula V = l³ (Volume of a cube formula)

So, V = (0.12)³ = 0.0017 m³

Now, Density = $\frac{Mass}{Volume}$ or ρ = $\frac{M}{V}$

Therefore, ρ = $\frac{3.5}{0.0017}$ = 2058.8 kg/m³ (Answer)