Water flows through a pipe. The diameter of the pipe at point B is larger than at point A. Where is the speed of the water greater?
A) point A
B) point B
C) same at both A and B
D) Cannot be determined from the information given.

Question

Quizplus · Accepted Answer

According to the principle of continuity, the volume flow rate of fluid in a pipe must remain constant. As the diameter of the pipe increases at point B, the velocity of the fluid must decrease to maintain a constant flow rate. Therefore, the speed of water is greater at point A where the diameter of the pipe is smaller.

Water Flows Through a Pipe