A sealed equipment bay on an underwater vehicle has a horizontal roof panel and a horizontal floor panel. Its other panels are vertical, so the forces on them have no vertical component.
Pressure sensors measure the pressure due to the surrounding water on the outside of the bay.
| Quantity | Value |
|---|---|
| pressure on roof panel | 32 000 Pa32\,000\ \text{Pa}32000 Pa |
| pressure on floor panel | 39 500 Pa39\,500\ \text{Pa}39500 Pa |
| area of each panel | 0.060 m2 |
Calculate the upthrust on the equipment bay.
132 exam-style questions on Edexcel GCSE Physics 15.2 Pressure in fluids, covering 15.2.1 Atmospheric pressure and height, 15.2.2 Pressure in fluids, 15.2.3 Pressure, force and area, 15.2.4 Pressure and depth, 15.2.5 Pressure in liquids: depth and density, 15.2.6 Upthrust, and 15.2.7 Floating and sinking. Each one has a worked solution and a mark scheme showing where the marks go.