Physics (AS & A Level) · Feb / March 2019 · Paper 12 · Question 14

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 \frac{4}{3} πr^3. Which average pressure does the object exert on the table?

1. A\frac{1}{3} ρr^2
2. B\frac{1}{3} ρr^2g
3. C\frac{2}{3} ρr
4. D\frac{2}{3} ρrg

As printed in the paper