Which principle states that the total mechanical energy in an ideal fluid flowing along a streamline remains constant, combining pressure energy, kinetic energy, and potential energy per unit volume?

💡 Solution & Explanation

Bernoulli's principle is derived from the conservation of energy for flowing fluids, stating that an increase in fluid velocity occurs simultaneously with a decrease in static pressure or potential energy. Pascal's law states that pressure applied to an enclosed fluid is transmitted undiminished to every portion of the fluid. Archimedes' principle determines buoyant force magnitudes on submerged bodies. Stokes' law calculates viscous drag forces acting on small spherical objects moving through viscous fluids.