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CBSE Class 9 Answered

FIND THE WEIGHT OF AN OBJECT AT A HEIGHT OF 6400 KM ABOVE THE EARTH'S SURFACE. THE WEIGHT OF THE OBJECT AT THE SURFACE OF THE EARTH IS 20 N.
Asked by udayan Sarkhel | 28 Sep, 2013, 07:24: PM
answered-by-expert Expert Answer
The radius of earth is R = 6400 km.
Thus, the height of the object is h = 2R
The weight of the object is given as;
 
 
Thus, the weight at height h is;
 
Answered by Romal Bhansali | 29 Sep, 2013, 10:29: AM

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