Question

A boy weighing 500 N is standing on the ground wearing a pair of flat shoes. The area of contact of one shoe with the ground is $100c{m}^2$. What will be the pressure exerted by the boy on the ground if he stands on both feet?

• A. $25000N/m^2$
• B. $50000N/m^2$
• C. $2500N/m^2$
• D. $5000N/m^2$

Answer 1

The correct option is A $25000N/m^2$

P=F/A
F= 500 N
A= 200 $c{m}^2$= 0.02 $m^2$
P= 500/0.02= 25000 $N/m^2$