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AP® Physics 1 & 2

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Uphill Pipe

APPH12-WEKUVT

The diagram above shows water moving through a pipe that goes uphill. The diameter of the pipe is larger at point B than at point A. The pressure and fluid velocity at point A are known, as is the density of the water, and the acceleration due to gravity.

Additional measurements are to be made. Which of the following would NOT provide enough information to calculate the pressure at point B?

A

The height, $h$, and the fluid speed at point B.

B

The height, $h$ and the diameters at both points A and B.

C

The fluid speed at point B, and the diameters at both points A and B.

D

All of these give enough information to calculate the pressure at point B.