One end of a spring whose spring constant is 20 N/m is attached to the wall, and you pull on the other end, stretching it from its equilibrium length of 0.2 m to a length of 0.3 m. Estimate the work...

One end of a spring whose spring constant is 20 N/m is attached to the wall, and you pull on the other end, stretching it from

its equilibrium length of 0.2 m to a length of 0.3 m. Estimate the work done by dividing the stretching process into two

stages and using the average force you exert to calculate work done during each stage.