Question

Lorna and Kiran (who weigh the same) went to their school's annual day wearing shoes as shown here. Whose shoes would make a deeper impression in the wet, sandy ground there?

Answer 1

Answer:

kiran's shoes

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Answer 2

Answer:

Kiran's shoe will make a deeper impression on the ground.

Explanation:

• Pressure is the perpendicular force applied to the surface of an object in the area of ​​each unit.

• If the area is more pointed or sharper the pressure acted will be more for the same magnitude of force.
• Units of pressure are $N/m^{2}$ or $Pa$.

The formula for pressure is given by:

$Pressure=\frac{Force}{Area}$

Step 1:

Both of them have the same weight so, the force applied on the ground will be the same. In the figure, we see that Kiran's shoe heels are more sharp and pointed than Lorna's shoe heels.

So, the surface area of Kiran's shoe heels will be lesser than that of Lorna's shoe heels.

Step 2:

Hence, according to the formula pressure exerted on the wet ground by Kiran's shoe will be more than that of Lorna's shoe.

Therefore, Kiran's shoe will make a deeper impression on the ground.