Question

18. At what height above th
Surface ofEarth does the acceleration due to
gravity(1) reduces to 64%.
2) reduces by 64% of its value on the
surface of Earth. Radius of earth = 6400 km.
plz give me solution...​

Answer 1

Answer:

At what height does acceleration due to gravity decrease to 64% of its value on the Earth's surface? Since the Earth's radius is 6378.140 km, this gives an altitude of 1594 km. 1/r² becomes 36% of its original value (since the rest of the terms are constant). 1/r becomes 6/10 of 1/6400km.

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