Final answer:In an elliptical orbit, a satellite does not travel at a constant speed, but its speed varies, being faster at perigee and slower at apogee due to conservation of angular momentum.Explanation:When considering the motion of a satellite in an elliptical orbit, it does not travel at a constant speed, velocity, or acceleration. Instead, according to Kepler's laws of planetary motion and Newton's law of gravitation, a satellite's speed varies throughout its orbit. The satellite moves faster when it is closer to the planet (at its perigee) and slower when it is farther away (at its apogee). This change in speed is due to the conservation of angular momentum which dictates that the line from the satellite to the planet sweeps out equal areas in equal times.The concept of orbits being elliptical rather than circular means that unlike a circular orbit where the speed remains constant, in an elliptical orbit the speed changes. The relation between the radius cubed and the period squared is, however, constant for all satellites orbiting the same parent body. This constant is a reflection of the areal velocity, which is constant for any orbit, again a result of angular momentum conservation....

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