Fluid flow in narrowing tube · PhysicsBowl 2013 #25
Physics · fluid-mechanics
Problem
An ideal fluid completely fills a small horizontal tube that has a narrowing cross-sectional area as seen in the figure. Which one of the following choices best describes what has happened to the fluid's speed and its associated pressure in the narrower region as compared to the wider region?
(A) The fluid speed increased and the fluid pressure decreased.
(B) The fluid speed increased and the fluid pressure increased.
(C) The fluid speed increased and the fluid pressure remained the same.
(D) The fluid speed decreased and the fluid pressure increases.
(E) The fluid speed decreased and the fluid pressure decreases.