Water is flowing through a long horizontal tube. Let P A and P B be the pressures at two points A and B of the tube.

Question

Philoid · Accepted Answer

The pressure at the two points would be equal only if the velocities of the water at these points are equal. This is possible only if the cross-sectional areas are equal at the points. If this is not true, the pressure will vary with the velocities of the water at the points.

Water is flowing through a long horizontal tube. Let PA and PB be the pressures at two points A and B of the tube.

Water is flowing through a long horizontal tube. Let P_A and P_B be the pressures at two points A and B of the tube.