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|| A student measures the force required to stretch a spring by various amounts and makes the graph shown in Figure 5.59, which plots this force as a function of the distance the spring has stretched. (a) Does this spring obey Hooke’s law? How do you know? (b) What is the force constant of the spring, in N/m? (c) What force would be needed to stretch the spring a distance of 17 cm from its unstretched length, assuming that it continues to obey Hooke’s law?
Figure 5.59
Problem 49.
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