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Find the launch velocity necessary for a rocket to escape Earth only considering gravity

Ignoring all forces except the Earth’s gravity find the speed with which you must launch a rocket so that it never returns to Earth.


Incomplete.

One comment

  1. Evangelos says:

    I’m not sure an independent learner could figure this one out just by using the prior information from the book. It seems to be more of a challenge question for the rocket scientists at Tech, or a fun trivia question. The big piece of missing information is the height that the rocket must reach to leave the earth’s gravitational pull and take a parabolic trajectory rather than a circular or elliptical orbit trajectory back down to earth.

    Back of book answer is 6.96 miles per second

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