In an experiment to determine the force constant of a spiral spring, the extension x is measured as a function of the load applied. If a graph of load M is plotted against extension x according to the equation Mg = sx, where M, g, s and x have their usual meaning. Assume g = 9.8 m/sA2. What is the stiffness of the spring if the slope of the graph obtained is 1.88kg/m?
Answer: 18.42 N/m
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