Question

A person stands on his two feet over a surface and experiences a pressure P. Now the person stands on only one foot. He would experience a pressure of magnitude _________.

• A. 4 P
• B. P
• C. $\frac{1}{2}P$
• D. 2 P

Answer 1

The correct option is D 2 P

Pressure is force per unit area.

Let $P$ be initial pressure and $P_1$be final.

$P$ = $\frac{F}{A}$

$P_1$ =$\frac{F}{A/2}$ = $\frac{2F}{A}$ = $2P$