Question
Download Solution PDFFind the density (in kg/m3) of a piece of wood of dimensions 6 cm × 8 cm × 5 cm, and weight 1.92 N. (Use g = 10 m/s2)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Density:
- Density is the measurement of how tightly a material is packed together.
- It is defined as the mass per unit volume.
Mathematically, \(\rho =\frac{Mass}{Volume}\)
Calculation:
Given:
dimensions of wood = 6 cm × 8 cm × 5 cm, weight = 1.92 N, g = 10 m/s2
Weight = mass × gravity
⇒ 1.92 = mass × 10
⇒ \(mass=\frac{1.92}{10}=0.192~kg\)
∵ Density, ρ = \(\frac{Mass}{Volume}\)
⇒ ρ = \(\frac{0.192}{0.06~\times~0.08~\times~0.05}\)
⇒ ρ = 800 kg/m3
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