A-LevelPhysicsForces, density and pressure9702/12 · Feb/Mar 2019 · Q141 Mark
An object shaped as a hemisphere rests with its flat surface on a table. The object has radius r and density ρ. The volume of a sphere is ⁴⁄₃ π r³. [Figure 14.1] Which average pressure does the object exert on the table?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
A½ ρ r²
B½ ρ r² g
C⅔ ρ r
D⅔ ρ r g
✓ Correct answer
D: ⅔ ρ r g
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