An artificial satellite is in an elliptical orbit around the earth with aphelion of `6R` and perihelion of `2R` where `R` is radius of the earth `=6400km`. Calculate the eccentricity of the elliptical orbit.

An artificial satellite is in an elliptical orbit around the earth wit

1.	An artificial satellite is in an elliptical orbit around the earth with aphelion of `6R` and perihelion of `2R` where `R` is radius of the earth `=6400km`. Calculate the eccentricity of the elliptical orbit.
Answer» We know that, perigee `(r_(p))=a(1-e)=2R`.....(1) apogee `(r_(a))=a(1+e)=6R`.....(2) Solving (1) & (2), eccentricity `(e)=0.5`

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An artificial satellite is in an elliptical orbit around the earth with aphelion of `6R` and perihelion of `2R` where `R` is radius of the earth `=6400km`. Calculate the eccentricity of the elliptical orbit.

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