To Hold a Spring That Has Been Stretched from Its $15.0 \mathrm{~cm}$

Short Answer

To hold a spring that has been stretched from its natural length of $15.0 \mathrm{~cm}$ to a length of $20.0 \mathrm{~cm}$ , a force of $82.0 \mathrm{~N}$ is required. Determine the work done when stretching the spring from $20.0 \mathrm{~cm}$ to $25.0 \mathrm{~cm}$ .