Suppоse а 30 N fоrce is required tо stretch аnd hold а spring 0.2 m from equilibrium (x=0) position. Write any necessary equations and integrals, evaluate by hand. A basic calculator is available in honorlock. a. Find the spring constant k b. How much work is required to compress the spring 0.4 m from equilibrium? c. How much work is needed to stretch the spring .2 m from equilibrium? Show work on paper, and submit at the end of the test.