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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
3 Nov 2021

Given information

The length of the rope is , weight of the rope is and the height of the building is  .

 

Step-by-step explanation

Step 1.

The weight of an infinitesimally short element of the rope with length   and at a distance of   from the top of the building is given by the formula .

 

 

Work required to pull this infinitesimally small element to the top of the building is given by the formula .

   

 

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