Question

The height of the point vertically above the eart
h's surtace
value at the surface is (R isthe radius of the earth)
(a) 8 R
(c) 10 R
at which the acceleration due to gravity ecomes 1% of its
b)9R
(d) 20R
​

Answer 1

Answer:

9R

Explanation:

g'=g(R/R+H)^2

and g'=1%g