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Mechanical Properties Of Fluids

Question

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What is the approximate thrust exerted by air on the human body?

Solution

The average surface area of human body is about 1.5m².
The atmospheric pressure is about 1 x 10⁵N/m².

We have,
Pressure, P =

\frac{F}{A} \Rightarrow F = P \times A

Therefore,
Thrust exerted by air = 1.5x10⁵N.

Some More Questions From Mechanical Properties of Fluids Chapter

Which phase of fluid is more compressible?

What is an ideal liquid?

Do liquids exert pressure?

Define pressure.

What is the direction of pressure?

What is the direction in which pressure exerts force on the walls of a container?

What is the SI unit of pressure?

You have two identical glass flasks. One is open mouthed and other is filled with helium and sealed. Which of the two will weigh more?

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