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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 October 2013, 3:23 PM
Answered by 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 Expert 14th October 2013, 12:15 PM
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