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Unformatted text preview: Hooke’s Law: The force F required to compress or stretch a spring is given by F = kx where k is the spring constant and x is the amount the spring is stretch or compressed from its natural length. Example 4: A spring of natural length 12” is stretched to 15” under a weight of 10 lb. (a) Find the work done (units of inlbs) to stretch it from 12” to 13”. (b) Find the work done to stretch it from 15” to 18”. Example 5: It takes 100 inlb of work to stretch a spring from its natural length of 10” to 20”. (a) Determine the spring constant k . (b) Determine the work done to stretch the spring from 12” to 14”....
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 '06
 EDeSturler
 Force, Work, 20 ft, 10 lb, 50m, 6 lb

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