Which principle states that the total mechanical energy in a steady, non-viscous, incompressible fluid flow remains constant along a streamline?

💡 Solution & Explanation

Bernoulli's principle establishes that an increase in the speed of an ideal fluid occurs simultaneously with a decrease in static pressure or potential energy. Pascal's principle governs pressure transmission within enclosed static fluids, whereas Archimedes' principle addresses buoyant forces on submerged bodies. This fundamental fluid dynamic concept explains aerodynamic lift and venturi tube operations.