Question

what is pressure. please tell me ​

Answer 1

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Pressure (P) is defined as the amount of force (F) acting per unit area (A). The mathematical equation for pressure can be written as:

P= F/A = mg/A

where P is pressure F is the normal force (g is acceleration) and A is the area of the surface. Although the normal force is a vector quantity, pressure is a scalar quantity (vector page).

The SI unit for pressure is the pascal (Pa), equal to one newton per square metre (N/m2 or 1kg/(m-s2).

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