what total force is exerted on the inside surface of the bottom of the tank?

Where is the unit vector perpendicular to the surface of the material, pointingoutwards. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License. We recommend using aĪuthors: Paul Peter Urone, Roger Hinrichs Use the information below to generate a citation.

Then you must include on every digital page view the following attribution: If you are redistributing all or part of this book in a digital format, Then you must include on every physical page the following attribution: If you are redistributing all or part of this book in a print format, Want to cite, share, or modify this book? This book uses the That pressure is the weight of the fluid mg mg divided by the area A A supporting it (the area of the bottom of the container):

Let us calculate the pressure exerted on the bottom by the weight of the fluid. Its bottom supports the weight of the fluid in it. The difference is that water is much denser than air, about 775 times as dense.Ĭonsider the container in Figure 11.8. You may notice an air pressure change on an elevator ride that transports you many stories, but you need only dive a meter or so below the surface of a pool to feel a pressure increase. In this case, the pressure being exerted upon you is a result of both the weight of water above you and that of the atmosphere above you. Under water, the pressure exerted on you increases with increasing depth. This pressure is reduced as you climb up in altitude and the weight of air above you decreases.

At the Earth’s surface, the air pressure exerted on you is a result of the weight of air above you. If your ears have ever popped on a plane flight or ached during a deep dive in a swimming pool, you have experienced the effect of depth on pressure in a fluid.

Calculate density given pressure and altitude.

Explain the variation of pressure with depth in a fluid.

By the end of this section, you will be able to:

What total force is exerted on the inside surface of the bottom of the tank?