Question

Find the acceleration due to gravity at a height of 400km above the earth's surface. Given :Radius of the earth =6400km. Acceleration due to gravity on the surface of the earth =9.8m/s-2.

Answer 1

Answer:

8.6

Explanation:

Acceleration due to gravity above earth's surface=g(R/R+h)^2

Replacing the values

Acceleration due to gravity = (6400/6400+400)×9.8

=8.6(approx.)