Question

what is the density of a piece of wood with a mass of 25 kg and a volume of 0.0385 m³?
a 0.96 kg/m³
b 649 kg/m³
c 602 kg/m³
d 0.0015 kg/m³

Explanation:

Step1: Recall density formula

The formula for density ($
ho$) is $
ho = \frac{m}{V}$, where $m$ is mass and $V$ is volume.

Step2: Identify given values

We are given $m = 25\space kg$ and $V = 0.0385\space m^3$.

Step3: Calculate density

Substitute the values into the formula: $
ho=\frac{25}{0.0385}\approx649.35\space kg/m^3$.

Answer:

b. 649 kg/m³