Escape velocity

1. At 11km/s or 6.85 miles/s you can successfully break orbit and escape the gravitational pull of the Earth. 
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3. At 10km/s or 6.21 miles/s the Earth will eventually slow down your ascent till you begin falling back towards the ground. 
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5. These values are at ground level. Once in orbit the escape velocity is lower than 11km/s.  source
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7. Velocity is the speed and direction of motion of an object. 
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9. In other words, velocity is the rate of change of position of an object (where position incorporates direction by specifying whether the object is moving backwards or forwards on a line, or moving sideways or up and down in two or three dimensions). source

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https://www.pbs.org/wgbh/nova/article/legacy-of-e-equals-mc2/

https://cotswold-astronomyscience.blogspot.com/p/education.html

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