The outer emergency door of a deep-sea bathyscaphe is rectangular, measuring 35 cm by 50 cm.
At its operational depth, the ocean water exerts a pressure of 4.2 × 105 Pa on the door.
Calculate the force, in newtons, exerted on the door by the water pressure.
Use the equation:
pressure=forcearea \text{pressure} = \frac{\text{force}}{\text{area}} pressure=areaforce54 exam-style questions on Edexcel GCSE Physics 15.2 Pressure in fluids (physics only). Each one has a worked solution and a mark scheme showing where the marks go.