Answer:
Pressure of woman will be [tex]99.87\times 10^5N/m^2[/tex]
Pressure of the elephant will be [tex]1716560.50N/m^2[/tex]
Explanation:
We have given that mass of the woman m = 80 kg
Acceleration due to gravity [tex]g=9.8m/sec^2[/tex]
Diameter of shoes = 1 cm =0.01 m
So radius [tex]r=\frac{d}{2}=\frac{0.01}{2}=0.005m[/tex]
So area [tex]A=\pi r^2=3.14\times 0.005^2=7.85\times 10^{-5}m^2[/tex]
We know that force is given F = mg
So [tex]F=80\times 9.8=784N[/tex]
Now we know that pressure is given by [tex]P=\frac{F}{A}=\frac{784}{7.85\times 10^{-5}}=99.87\times 10^5N/m^2[/tex]
Now mass of elephant m = 5500 kg
So force of elephant = 5500×9.8 = 53900 N
Diameter = 20 cm
So radius r = 10 cm
So area will be [tex]A=3.14\times 0.1^2=0.0314m^2[/tex]
So pressure will be [tex]P=\frac{53900}{0.0314}=1716560.50N/m^2[/tex]
