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Textbook Expert
Textbook ExpertVerified Tutor
19 Nov 2021

Given information

It is given that a chain lying on the ground is    long and its mass is  .

Step-by-step explanation

Step 1.

The work done by a force,  in moving a particle from  to  is given as :

 

 

Evaluating the weight per unit length of the chain :

 

where is the value of .

 

Evaluating the weight of a very short element of the chain :

 

 

Evaluating the work required to pull this small element from the ground to its current height :

 

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