Questions
A satellite of mass m revolves around the earth of radius R at a height x from its surface. If g is the acceleration due to gravity on the surface of the earth, the orbital speed of the satellite is
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a
gx
b
gRR−x
c
gR2R+x
d
gR2R+x12
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Correct option is D
For the satellite, the gravitational force provides the necessary centripetal force, i.e., GMem(R+x)2=mv02(R+x) or GMeR2=gv0=gR2R+xSimilar Questions
Which one of the following statements regarding artificial satellite of the earth is incorrect
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