In 14 the given differential equation is model of an undamped spring/mass system in
Chapter 5, Problem 1(choose chapter or problem)
In 14 the given differential equation is model of an undamped spring/mass system in which the restoring force F(x) in (1) is nonlinear. For each equation use a numerical solver to plot the solution curves that satisfy the given initial conditions. If the solutions appear to be periodic use the solution curve to estimate the period T of oscillations.
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