Physics 9702 · AS & A Level · Density and pressure

Density and pressure — practice question

A plate lying horizontally has an area of $0.036\,\text{m}^2$ and is positioned below the surface of a liquid with density $930\,\text{kg m}^{-3}$. The liquid pressure exerts a force of $290\,\text{N}$ on the plate. How far below the liquid surface is the plate?

  • A$0.88\,\text{m}$
  • B$1.13\,\text{m}$
  • C$8.7\,\text{m}$
  • D$9.1\,\text{m}$

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