**Problems 10 and 11:**A nonlinear spring has a spring force function of:\[ F = -2x^2(x + 2) \, \text{(N)} \]---**10. What is the spring potential energy function?**\[ \text{Answer 10:} \, \underline{\hspace{70mm}} \]---**11. The spring is positioned horizontally along a frictionless surface. A 2 kg mass is pushed against the spring. By what amount should the spring be compressed so that when the mass is released, the max velocity of the mass is 5 m/s?**\[ \text{Answer 11:} \, \underline{\hspace{70mm}} \]

Using relation between force and potential energy

Answered: Problems 10 and 11: A nonlinear spring…

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