Physics (AS & A Level) · Feb / March 2023 · Paper 12 · Question 13

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 πr³. Which average pressure does the object exert on the table?

1. A1/3 ρr²
2. B1/3 ρr²g
3. C2/3 ρr
4. D2/3 ρrg

As printed in the paper