Spring Oscillation in Vertical Position
### Equilibrium Extension
$$mg=kx_0$$
### Extension
$$x_0=\frac{mg}{k}$$
### Terminologies
- x₀ → Equilibrium extension.
- m → Mass.
- k → Spring constant.
### Conditions / Special Cases
Gravity only shifts mean position.
### Usage
- Used in vertical spring SHM problems.