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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A particle of mass m is thrown in a parabolic path towards earth having mass M and radius R. It comes to a greatest approach distance R/2 from surface of earth. Magnitude of an elliptical path having eccentricity 1/2 with the greatest approach point either aphelion or perihelion are

A particle of mass m is thrown in a parabolic path towards earth having mass M and radius R. It comes to a greatest approach distance R/2 from surface of earth. Magnitude of an elliptical path having eccentricity 1/2 with the greatest approach point either aphelion or perihelion are

A particle of mass m is subjected to an attractive central force of magnitude k/r 2 at a distance a from the centre of force if the distance of other extreme position is b. Find a/b its speed is (k/2ma) ​ k being a constant. If at the instant when the particle is at an extreme position in its closed orbit