What is the speed required for a stone ,which is projected from earth , So that it rotates around the Earth ?

Asked by Pavan Teli | 12th Oct, 2013, 03:23: PM

Expert Answer:

The speed with which a stone or any object orbits around earth is known as critical velocity.
 
It is given as
 
 
Where, G is the universal gravitation constant, M is the mass of Earth and r is the distance of object from the centre of earth.
 
Thus, a stone projected from earth will acquire a speed which depends on its distance from centre.
 
If r is known, v can be found by substituting the values of G, M and r.

Answered by Romal Bhansali | 14th Oct, 2013, 12:15: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.