Fluid Flow in a Pipe with Varying Diameter

Hard Physics Fluid Mechanics

A thin, horizontal pipe carries water at a steady flow rate. The diameter of the pipe decreases from 10 cm to 5 cm along its length. As the water moves from the wider section to the narrower section of the pipe, which of the following statements accurately describes the behavior of the fluid, assuming incompressible, non-viscous flow?

The pressure of the water will increase as it flows into the narrower section.

The velocity of the water decreases when it enters the narrower section.

The flow rate will remain constant regardless of the change in diameter.

The kinetic energy of the water decreases as it moves into the narrower section.

Hint

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