A man weighs 60kg on the surface of the earth. The altitude where his weight will be 30kg is (R is the radius of the earth)

A man weighs 60kg on the surface of the earth. The altitude where his

1.	A man weighs 60kg on the surface of the earth. The altitude where his weight will be 30kg is (R is the radius of the earth)
Answer» `H = 2 sqrtR` `h=2R` `h=R/2` `h=(sqrt2-1)R` ANSWER :D