Physics 9702 · AS & A Level · Density and pressure

Density and pressure — practice question

A solid metal cuboid has density $2700\,\text{kg m}^{-3}$ and edge lengths of $1.0\,\text{m}$, $2.0\,\text{m}$ and $4.0\,\text{m}$. The cuboid may be arranged on a horizontal surface so that it stands on any one of its six faces. What is the greatest pressure the cuboid can produce on the surface, because of its weight, when it is resting on one of its six faces?

  • A$11\,\text{kPa}$
  • B$26\,\text{kPa}$
  • C$53\,\text{kPa}$
  • D$110\,\text{kPa}$

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