At the surface of a fluid, the upward force from the fluid equals atmospheric pressure.

Question

Quizplus · Accepted Answer

The upward force from the fluid at the surface of a fluid is equal to atmospheric pressure. This is because the pressure at the surface of a fluid is equal to the weight of the fluid above it. The weight of the fluid above the surface is equal to the atmospheric pressure. Therefore, the upward force from the fluid at the surface of a fluid is equal to atmospheric pressure.

At the Surface of a Fluid, the Upward Force from the Fluid