Hippos spend much of their lives in water, but amazingly, they don’t swim. They have, like manatees, very little fat. The density of a hippo’s body is approximately 1030 kg/? ! , so it sinks to the bottom of the freshwater lakes and rivers it frequents-and then simply walks on the bottom. A 1500 hippo is completely submerged, standing on the bottom of a lake. What is the approximate value of the upward normal force on the hippo?
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
Hippos spend much of their lives in water, but amazingly, they don’t swim. They have, like manatees, very little fat. The density of a hippo’s body is approximately 1030 kg/? ! , so it sinks to the bottom of the freshwater lakes and rivers it frequents-and then simply walks on the bottom. A 1500 hippo is completely submerged, standing on the bottom of a lake. What is the approximate value of the upward normal force on the hippo?
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