The pressure in a section of a horizontal pipe of diameter d1 = 2.0 cm is p1 = 142 kPa. The water flows through the pipe at a volumetric flow rate V = 2.8 L/s. If the pressure at a certain point is reduced to p2 = 42.6 kPa, due to a throttling of a pipe section, what should the diameter d2 of the throttling section be? Consider the density of water ρ = 1.0 g/cm3. Choose the correct option:

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Fluid Kinematics

The branch of science that deals with objects which are either in motion or stationary are studied under the branch of classical mechanics. Fluid mechanics is a subcategory of classical mechanics that deals with the behavior of fluids at rest (fluid statics) or in motion (posing some velocity). In fluid kinematics, studies focus on the associated motion of fluid particles or groups of particles, and its associated parameters like displacements, velocity, and acceleration without concerning about the forces that caused the motion. All the laws of classical mechanics are applied in the study of fluid kinematics.