what is meant by escape velocity?
Answer (1)
2nd Feb, 2020
Hi,
The lowest velocity which a body must have in order to escape the gravitational attraction of a particular planet or other object.
On the surface of the Earth , the escape velocity is about 11.2 km/s, which is approximately 33 times the speed of sound (Mach 33) and several times the muzzle velocity of a rifle bullet (up to 1.7 km/s).
Hope this helps.
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