A planet orbits in an elliptical path of eccentricity e around a massive star considered fixed at one of the foci. The point in space where it is closest to the star is denoted by P and the point where it is farthest is denoted by A. Let v

Question

A planet orbits in an elliptical path of eccentricity e around a massive star considered fixed at one of the foci. The point in space where it is closest to the star is denoted by P and the point where it is farthest is denoted by A. Let v _ p and v _ a be the respective speeds at P and A . Then-

Quantrex Academy · Accepted Answer

Correct answer: A. v _ P v _ A = 1+ e 1- e

Using conservation of angular momentum array l V _ p r_ p = V _ A r _ A V _ P V _ A = r _ A r _ P = a + ae a - ae array

A planet orbits in an elliptical path of eccentricity e around a massive star considered fixed at one of the foci. The point in space where it is closest to the star is denoted by P and the point where it is farthest is denoted by A. Let v _ p and v _ a be the respective speeds at P and A . Then-

Options

Correct answer

Step-by-step solution

More from Gravitation