Define escape velocity- orbital velocity What is the value of escape velocity in case of earth? - letsdiskuss
Official Letsdiskuss Logo
Official Letsdiskuss Logo

Language


ankit shukla

merchant navy | Posted on | Science-Technology


Define escape velocity- orbital velocity What is the value of escape velocity in case of earth?


0
0




Software engineer at HCL technologies | Posted on


Escape velocity :


It is the minimum velocity with which a body is must be projected vertically upwards inlrder that it may just escape the gravitational field of earth.

For example: If we throw a ball into air, it rises to a certain height and falls back. If we throw it with a greater velocity, it will never come back. This greater velocity is escape velocity.

Formula: Ve = √2GM/R 

Where, M is mass of earth and R is radius of earth.

Letsdiskuss

Orbital velocity :

It is the velocity required to put the satellite into its orbit around the earth. 

Formula: Vo= √GM/R+h

Where, 
R is radius of earth 
M is mass of earth 
Vo is orbital velocity 
h is height of satellite above earth's surface.  
R+h is orbital radius of the satellite.


0
0

Picture of the author