Question
A satellite is revolving around a planet of mass M in an elliptical orbit of semi-major axis a. The orbital velocity of the satellite at a distance r from the focus will be
Options :
[GM(2/r - 1/a)]⁰.⁵
[GM(1/r - 2/a)]⁰.⁵
[GM(2/r² - 1/a²)]⁰.⁵
[GM(1/r² - 2/a²)]⁰.⁵
Answer :
[GM(2/r - 1/a)]⁰.⁵
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