Question

Hiten whose mass is $75kg$ is on a summer trip to goa. The cross-sectional area of Aryan's foot is $75c{m}^2$.
b) Find the pressure at the bottom of his feet if he lifts one of his feet.

• A. $100000N/m^2$
• B. $10N/m^2$
• C. $1000000N/m^2$
• D. $1000N/m^2$

Answer 1

The correct option is A $100000N/m^2$

$Pressure=Thrust\left(force\right)/Area$
$F=mg$
$F=75\times 10=750N$
$Area\left(A\right)=75c{m}^2=75\times {10}^{-4}{m}^2$
$P=750/0.0075=100000N/m^2$