what are the relation between pressure, force and are
Answers
Answer:
the two solid bodies mechanical interaction. They acts one on other through the area of their contact. That is, because there can not be infinite pressure they can not be touched in a one point. So they will deformed until the contact area reach to a value when the pressure will compensated by the tension of deformation. So both bodies has common contact area. So again, let we have the two rigid bodies. When they are interacting there is a small contact area appears between them. It can be considered as a flat surface. The force of interaction can be expressed as a sum of the two vectors: normal to surface force Fn and the tangent to one Ft. The tangent force depends on if the friction present. And the normal force is present always. Physically it is a net force of many many forces of the particles of the bodies interaction. That is, because the contact surface in fact is created by contact of the two surfaces (this is, the two film of particles). When we say “the normal force” we understand that there is not such a force itself. This force is an equivalent of interaction and no more. Its sense is in a fact that it is a simple abstraction that releases us from the huge amount inter-particles interaction, consideration. We understand that the particles are oscillating and their interactions are not constant in time and are not equal one to other in every moment. But we can consider the some an average intensity of interaction that can be expressed as the net normal force (Fn in a picture) divided to the surface through which this a force is acting. So:
P=FnS
Answer:
P=F/A
Explanation:
pressure is directly proportional to force and inversely proportional to area