An astronomical satellite is orbiting the earth with an elliptical orbit. The altitude of the perigee this orbit is 250000 m. The altitude of the apogee is double to that of perigee. a. Draw the schematic of this orbit having the earth at its center and show those two points, as well as major and minor axis.
b. Calculate the speed of the satellite at these two points.
c) Calculate the length of major and minor axis of this orbit.
d) Calculate the area of this elliptical orbit.
e) Calculate the period of revolution.

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

A) acceleration. this seems to be the one that makes sense.