A porter keeps a towel on his head to carry a load to _____.

increase the pressure due to the load

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reduce the pressure to zero due to the load

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minimise the pressure due to the load

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balance the load

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Solution

The correct option is C minimise the pressure due to the load
From definition of pressure,
$P r e s s u r e = \frac{F o r c e}{A r e a}$

Here, the force applied is kept constant and the pressure is inversely proportional to the area. By keeping a towel on the head, the porter increases the contact area and hence minimizes the pressure that the load exerts on his head.

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Similar questions

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

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

Why does a potter keep a towel on his head while carrying a load?

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