This application simulates the mass-spring system.

Buttons:

• Restarts the simulation.
• Configures system parameters: body mass, spring elastic constant, etc.
• Enables or disables the system power panel.
• Enables or disables the system dynamic variables panel: position x, speed v, and time t.

This simulation works based on ODE

where $k_2$ is the nonlinear part of the spring constant and $F(t) = F_0\cos(\omega_0 t)$ is the external force. The ODE is solved by the fourth order Runge-Kutta method with integration step $h$.

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