Question

Step 1

We have to find work done to compress the spring from its natural length (L=18).

Step 2

Now as we know that F=kx where k is spring constant so first we will find vaue of k .

Initially it is compressed from 18 inch to 16 inch means L=0 to L=2 so value of k is calculated , work is shown below

Step 3

We will use power rule of integral to integr...

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