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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
19 Nov 2021

Given information

It is given that 6 J of work is needed to stretch a spring from 10 cm to 12 cm and another 10 J is needed to stretch it from 12 cm to 14 cm.

Step-by-step explanation

Step 1.

The work required to stretch the spring from  to  beyond its natural length is given as :

 

 

Let be the natural length of the spring.

It is given that 6 J of work is needed to stretch a spring from 10 cm to 12 cm.

Thus, and .

   

 

Thus,  

 

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