It is observed that the total pressure exerted by air on the man of average size is around 14.7 lb wt. per square inch. But the man feels quite comfortable,. It is because of__________?
Correct answer: A. An equal and opposite pressure acts from inside
- A. An equal and opposite pressure acts from inside
- B. of the height of a man
- C. of gravity
- D. Earth pulls the man upward
- E. None of these
Explanation
Atmospheric pressure is balanced by pressure from fluids and gases inside the body acting outward, so the net force on the body is small. The pressure is not absent; it is balanced internally.
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