The orbital speed of an artificial satellite very close to the surface of the earth is V0 . Then he orbital speed of another artificial satellite at a height equal to three times the radius of the earth is

Q: The orbital speed of an artificial satellite very close to the surface of the earth is V0 . Then he orbital speed of another artificial satellite at a height equal to three times the radius of the earth is

(a) V0

(b) 2 V0

(c) 0.5 V0

(d) 4 V0

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Ans: (c)