The P.E of a spring on stretching through a distance of 5 m is 20 J . Calculate the amount of work done on this spring on stretching it further through a distance of 2 m .

Explanation

To solve the problem of calculating the work done on a spring when it is stretched further, we can follow these steps:

### Step 1: Understand the relationship between potential energy and spring constant
The potential energy (P.E) stored in a spring when it is stretched or compressed by a distance \( x \) is given by the formula:
\[ P.E = \frac{1}{2} k x^2 \]
where \( k \) is the spring constant.
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