Question

Define Pressure acting on a Surface.

Answer 1

Answer:

Pressure is a stress. It is a scalar given by the magnitude of the force per unit area. In a gas, it is the force per unit area exerted by the change of momentum of the molecules impinging on the surface.It is this force, acting on the surface of the solid, that we call the force due to pressure.

Explanation:

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Answer 2

Answer:

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Explanation:

Pressure is a stress. It is a scalar given by the magnitude of the force per unit area. In a gas, it is the force per unit area exerted by the change of momentum of the molecules impinging on the surface. ... It is this force, acting on the surface of the solid, that we call the force due to pressure