Do all black holes have the same escape velocity? - Quora
Escape velocity Calculator - High accuracy calculation
Find approximately the third cosmic velocity v3, i.e. the minimum velocity that has to be imparted to a body relative to the Earth's surface to drive it out of the Solar system.
Formula: First Cosmic Velocity (Radius, Mass)
Is the value of the escape velocity the same at the poles and equator? - Quora
Escape velocity Derivation & concept - derive formula as √(2gR) for earth
Physics 231 Topic 9: Gravitation Alex Brown October 30, ppt download