A remote‐sensing satellite of earth revolves in a circular orbit at a height of 0. 
above the surface of earth. If earth’s radius is 
and 
, then the orbital speed of the satellite is
A
9.13 km 
B
6.67 km 
C
7.76 km 
D
8.56 km 
Text Solution
Verified by ExpertsThe correct answer is:
C
: The orbital speed of the satellite is
where 
is the earth’s radius, 
is the acceleration due to gravity on earth’s surface and 
is the height above the surface of earth.
Here, 
and
km 
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