Question

What is escape speed? Derive expression for it.

Answer 1

The velocity required by an body to just escape from the gravitational field of the Earth is known as it's escape velocity

Answer 2

1. Answer:
2. ${ \huge\fbox \pink {♥}\fbox \blue {A} \fbox\purple {N} \fbox \green{S} \fbox \red {W} \fbox \orange {E} \fbox{R} \fbox \gray{♥}}$

Explanation:

physics, escape velocity is the minimum speed needed for a free, non-propelled object to escape from the gravitational influence of a massive body, that is, to eventually reach an infinite distance from it. Escape velocity rises with the body's mass and falls with the escaping object's distance from its center.