Question
Question: When an object is in a circular orbit of radius r, its time period of revolution about the earth is ...
When an object is in a circular orbit of radius r, its time period of revolution about the earth is T and orbital velocity is v when its orbit is r + ∆r. Find the change in time period ∆T and orbital velocity ∆v.
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Answer
Explanation
Solution
v0= 
, v0 - ∆v = 
= 
= v0
= 
= 
= 
or T' = T
∆T = 