Porters place a round piece of cloth on their heads while carrying loads. This is to
A
increase area of contact
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B
decrease force
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C
increase pressure
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D
decrease weight of the load
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Solution
The correct option is A increase area of contact Pressure is inversely proportional to the area on which it acts. Porters use round pieces of clothes on their heads while carrying loads to increase the area of contact. This would further reduce the pressure of the load on their heads.