Sprint 89 · Chapter 7
Escape Speed: Leaving Earth For Good
The launch speed that never falls back, v_e = √(2gR_E) ≈ 11.2 km/s, and energy problems with one or two attracting bodies.

Sprint 89 · Chapter 7
The launch speed that never falls back, v_e = √(2gR_E) ≈ 11.2 km/s, and energy problems with one or two attracting bodies.
