Question

Consider a planet moving around a star in an elliptical orbit

Answer 1

Since the question is not complete, I presume that it is “with period T.  The area of an elliptical orbit is proportional to ….

The correct answer will be “T” only because “A line segment joining a planet and the star sweeps out of equal areas during equal intervals of time. 

Answer 2

Answer:

Hi dear

The escape velocity of a particle of mass m varies as m2

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