A satellite moving in a circular path of radius r around earth has a time period T .if it's radius slightly increases by 4% then percentage change in its time period is
Jitin , 6 Years ago
Grade 8
1 Answers
Arun
Last Activity: 6 Years ago
Dear student
According to Kepler's law-
T² = kr³
2T dT/dr = 3 k r² = 3 T²/r
dT/dr = 3/2 T/r..
Hence
dT = (3T/2r)* r
Now put the value of r = 0.04 r and find answer
Regards
Arun (askIITians forum expert)
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