A man weight 60 kg-wt at the earth's surface The radius of the earth is 6400 km. At what height above the earth's surface, his weight becomes 30 kg wt ?

A man weight 60 kg-wt at the earth's surface The radius of the earth i

1.	A man weight 60 kg-wt at the earth's surface The radius of the earth is 6400 km. At what height above the earth's surface, his weight becomes 30 kg wt ?
Answer» `0.2xx10^10erg` `2xx10^10J` `2xx10^9erg` `2xx10^9J` ANSWER :D

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A man weight 60 kg-wt at the earth's surface The radius of the earth is 6400 km. At what height above the earth's surface, his weight becomes 30 kg wt ?

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