Porters (coolies) place a round piece of cloth on their heads, to ______ the area of contact of the load with their head.

increase

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decrease

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maintain the same

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Cannot say

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Solution

The correct option is B increase
Increase
Coolie or porter place a round piece of cloth on their heads when they have to carry heavy loads. By doing this they increase the area of contact of the load with their head. As pressure is inversely proportional to the area of contact, the pressure on their head is reduced and the porters find it easier to carry the load.

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Similar questions

When porters place a round piece of cloth on their head, it reduces the pressure on their head as the area of contact increases.

Explain why, porters place a thick, round piece of cloth on their heads when they have to carry heavy loads.

Porters place a piece of cloth on their head to reduce the pressure.

Why do porters place the load they have to carry, on a roll of cloth rather than directly on their head?

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