Physics (AS & A Level) · May / June 2016 · Paper 11 · Question 13

A solid metal cylinder stands on a horizontal surface, as shown. The cylinder has length x and cross-sectional area A. The cylinder exerts a pressure p on the surface. The acceleration of free fall is g. Which expression gives the density of the metal of the cylinder?

1. A\frac{p}{gx}
2. B\frac{gx}{p}
3. C\frac{pA}{gx}
4. D\frac{gx}{pA}

As printed in the paper