http://twistedsifter.com/2012/05/history-of-nasa-rocket-launches-in-hq-photos/
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http://www.spaceflightnow.com/news/n0606/06atlas5msl/
What is escape velocity? It's the speed at
which rockets and space shuttles travel in order to escape the
pull of Earth's gravitational field and enter the empty void
of space. A spacecraft must be going approximately 11 km/s (7
miles/s) or 40,000 km/hr (25,000 miles/hr) to be able to break
free of Earth's orbit.
During every launch at NASA, this is a constant factor that must be accounted for which means it is of the utmost importance for scientists to know. It is derived primarily from Newton's Second Law which states that Force equals Mass times Acceleration and the force of the object leaving the Earth must exceed the force that is pulling down on the object from the Earth.
During every launch at NASA, this is a constant factor that must be accounted for which means it is of the utmost importance for scientists to know. It is derived primarily from Newton's Second Law which states that Force equals Mass times Acceleration and the force of the object leaving the Earth must exceed the force that is pulling down on the object from the Earth.