If speed of planet at apogee in terms of eccentricity ( ) is , ( is semi-major axis…

PHYSICS · Subjective · CBSE · Physics · Gravitation · Gravitation

Problem

If speed of planet at apogee in terms of eccentricity (

e

) is

\sqrt{\frac{kGM}{4a} \frac{1-e}{1+e}}

, (

a

is semi-major axis of ellipse) then value of

k

is _____.