Question: 5 . A spring with a constant k = 2 . 3 ft - lb / in has a natural length of 8 inches. How

5. A spring with a constant k =2.3 ft-lb/in has a natural length of 8 inches. How much work is required to stretch it from the natural length to a total length of 9 inches? How much work would be required instead to compress it from its natural length to a total length of 7 inches? Please solve using calculus and show all steps. 

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