Question

The mean radius of the earth is
R, its angular speed on its own
axis is w and the acceleration
due to gravity at earth's surface
is g. The cube of the radius of
the orbit of a geostationary
satellite will be:​

Answer 1

Answer:

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Explanation:

mrω2=r2GMm

⇒rω2=r2GM

⇒r3=ω2GM=R2GM.ω2R2

⇒r3=gω2R2

Hence (D) is correct.