Example of pressure exerted by solid
Answers
CONCEPT. Pressure is the ratio of force to the surface area over which it is exerted. Though solids exert pressure, the most interesting examples of pressure involve fluids—that is, gases and liquids—and in particular water and air.
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Answer:
Any block of material that is resting on a table will apply pressure from its weight. Let's picture a table with a cubic block on it. The block will be pressing on the table with a force equal to the area of contact (A) times the weight (P).
Explanation:
Given:
The pressure exerted by solid
To find:
Pressure
Solution:
A solid exerts a normal contact force equal to its weight when it is resting on a horizontal surface. The area of contact determines how much pressure the solid exerts on the surface.
Two factors determine the pressure between two solid surfaces: (a) the force between the surfaces, and (b) the area of contact between the surfaces.
Solids apply pressure because of their mass.
The weight of a block of any substance resting on a table exerts pressure. Think of a tabletop with a cubic block in it. The block will be pressing on the table with a weight of P and an area of contact of A.
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