Answer to Question #184957 in Civil and Environmental Engineering for John Prats

Question #184957

A body is immersed in a liquid in such a way that it is closely in contact with the bottom and there is no liquid beneath the body. Is there a buoyant force on the body? Explain

Expert's answer

According to the Archimedes principle, the buoyant force exerted on a body that is immersed in a liquid or fluid is equal to the weight of the fluid that the object displaces. When a body is engaged in a fluid, there is net force referred to as buoyant force, which is the difference between the upward force on the bottom of an object and the downward force on top of an object. Any object immersed in a fluid or floats has buoyant force due to pressure force exerted by a fluid. When the buoyant force is less than the weight of the body, then the object will sink. The fluid exerts pressure on all sides of the immersed body, whereby the pressure at the bottom of the object is greatest. 

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