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A satellite of mass m is orbiting around
Question
A satellite of mass m is orbiting around the earth at a height equal to twice the radius of the earth (R). Its potential energy is given by :
A
$−2mgR$
B
$−mg2R $
C
$−2mg3R $
D
$−mg3R $
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Updated on : 2022-09-05
Solution
Verified by Toppr
Correct option is D)
Gravitational potential energy at distance
$r$
from the center of the earth is given as,
$P=−rGM_{E}m =−3RGM_{E}m =−R_{2}GM_{E}m(R/3) $
$⟹P=−mg3R $
Option D is correct.
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