Question

calculate the gravitational acceleration at a distance twice the radius of earth above the surface of earth​

Answer 1

$\huge \red{Answer}$

g=GM/R^2 =9.8 m/s^2.

If height is 2 times the radius above the surface of earth.

g=GM/(R+2R)^2

=GM/(3R)^2

=GM/9R^2

=9.8/9=1.0888....

=1.09 (approx) m/s^2.

Answer 2

Explanation:

this formula is used when there is in height due to altitude