|How fast does the space rocket go, so it can get
through our atmosphere?|
The velocity needed to escape from Earth's
gravity is called Escape Velocity, and it
is sixteen kilometers per second (16 Km/sec),
which is about eleven miles per second (11
miles/sec), or about 40,000 miles per hour. A
rocket must be going at least this fast in order
to escape Earth's gravity.
Now, that said, if the place you are going is
the space station, you aren't out of Earth's
gravity yet. You only need to be going half that
fast to put yourself into orbit.
The speed required to escape the atmosphere is
called the escape velocity, and it depends where
you're located! It can be different if you're at
the equator, or if you're on the ground or high up
in the sky. However, this doesn't take air
resistance into account, which will slow you down,
especially at higher speeds! At the surface of the
Earth, escape velocity is about 11 km/s, or 7
miles per second
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