1-81 On the surface of the earth the weight of a body is 200 lb. At what distance from the center of the earth would the weight of the body be 50 lb?
1-81 On the surface of the earth the weight of a body is 200 lb. At what distance from the center of the earth would the weight of the body be 50 lb?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:1-81 On the surface of the earth the weight of a body is
200 lb. At what distance from the center of the earth would
the weight of the body be
50 lb?
Expert Solution

Step 1
Given:
Weight of the body at the surface, W=200 lb=90.7185 kg
Weight of the body at the d, W'=50 lb=22.6796 kg
The radius of the Earth, RE = 6371 km
The variation of the gravity with respect to the depth of the Earth is given as,
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