Maximum pressure on smallest face area

Steps:

• Volume = 1 m × 2 m × 4 m = 8 m³
• Mass = 2700 kg/m³ × 8 m³ = 21600 kg
• Weight = 21600 kg × 10 m/s² = 216000 N
• Smallest area = 1 m × 2 m = 2 m²; pressure = 216000 N / 2 m² = 108 kPa ≈ 110 kPa

Why D is correct:

• Pressure P = weight / area; maximum P when area is minimized per the formula.

Why the others are wrong:

• A: 11 kPa from incorrect weight or area calculation.
• B: 26 kPa from largest area (2 m × 4 m = 8 m²): 216000 N / 8 m² = 27 kPa.
• C: 53 kPa from medium area (1 m × 4 m = 4 m²): 216000 N / 4 m² = 54 kPa.

Final answer: D