Problem: A concrete floor slab is 6 m long, 4 m wide and 150 mm thick. The density of concrete is 2400 kg/m³.
- Determine the weight \(W\) of the slab in kN.
- Determine the load \(q\) the slab applies per unit floor area, in lb/ft².
- A steel plate (density 7850 kg/m³) with the same plan area is to have the same weight. Determine its thickness \(t\) in inches.
Use \(g = 9.81\,\text{m/s}^2\), \(1\,\text{lb} = 4.448\,\text{N}\), \(1\,\text{ft} = 0.3048\,\text{m}\) and \(1\,\text{in} = 25.4\,\text{mm}\).
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