Question

at a certain height above surface of the earth the gravitational acceleration is 90 percent of its value on the surfac of the earth determine height of the body above the surface of the earth given radius of earth is equal to 6400. ? class 12th​

Answer 1

Answer

320km

Explanation:

g=g(1-2x/r)

0.9g=g(1-2x/r)

9/10=1-2x/r

2x/r=1/10

x=r/20

x=6400/20

x=320