Activities

1. Drag the red mass to impart an initial velocity, and see how the system evolves.
2. Try changing the initial vertical position of the mass relative to the fixed end of the spring using the slider.
3. Observe what happens when gravity is switched off.
4. Try varying the spring constant relative to the force of gravity and/or the damping coefficient, using the sliders. You may need to fiddle with the damping coefficient to better approximate energy conservation.
5. Also try activating the "string-like" mode such that the elastic force only occurs in the stretched state and not in the compressed state.