Questions
In order to shift a body of mass m from a circular orbit of radius 3R to a higher orbit of radius 5R around the earth, the work done is
a
3GMm5R
b
GMm2R
c
215GMmR
d
GMm5R
detailed solution
Correct option is C
W=−GMm5R−GMm3R=GMm3R−GMm5R=GMmR13−15=215GMmRTalk to our academic expert!
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A satellite moves around the earth in a circular orbit of radius r with speed v. If the mass of the satellite is M, its total energy is
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