Question

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How escape velocity is related to the orbital velocity for the orbits closer to the earth?
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Class 11 CBSE

Answer 1

Answer:

Escape velocity is the minimum velocity required to overcome the gravitational potential of a massive body and escape to infinity. Orbital velocity is the velocity with which an object revolves around a massive body. The relation between escape velocity and orbital velocity are proportional.

Answer 2

Answer:

For bodies revolving close to the earth's surface,

$escape \: velocity = \sqrt{2gr} \\ whereas \: orbital \: velocity = \sqrt{gr} \: \\ thus \: we \: can \: see \: that \: escap \: velocity \: = \sqrt{2} times \: of \: orbital \: velocity$