Question

A person exerts 80,000 Pa of pressure on the ground while standing on both feet. What would happen to the pressure if the person then stood on only foot, decreasing the area in contact with the floor to half the original

Answer 1

Given :-

• A person exerts 80,000 Pa of pressure on the ground while standing on both feet.

To Find :-

• New pressure if the area of contact is reduced to half .

Solution :-

As we know that ,

→ Pressure = Force/ Area

If Force is constant, then ,

→ P inversely proportional to Area

→ P = k/A

→ PA = k

We can also write it as ,

→ P₁ A₁ = P ₂ A₂

Here ,

→ A₂ = A₁/2

so that;

→ A₁ * 80,000 Pa = A₁/2 * P ₂

→ P ₂ = 80000Pa *2

→ P ₂ = 160000 Pa

Hence the required answer is 160,000 Pa .