Compute escape velocity from the gravitational constant and body radius.
输入引力参数 μ 与天体半径 r,求逃逸速度。
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Escape velocity | v = √(2GM/r) | Newton, Principia, 1687 |
| Earth escape velocity | ≈ 11.19 km/s at surface | Classical orbital mechanics |
| Relation to circular velocity | v_esc = √2·v_circ | Vis-viva special case |