Recent content by t4chan

ok, I think I got it. so there are two different points in the diagram that have the same speed. Each of the points(i.e perigee and apogee) has a corresponding speed in elliptical and circular orbit. The lowest points of orbit is fastest , and the highest of the orbit is slowest. Now, I hope...

yes, you are right that about the speed in elliptical orbit. But from the attached diagram, the speed of the two intersection points between elliptical and circular orbit should be the same( i.e at the point of V and the opposite point of it). then if that is true, a expression of these points...

Hi again, After I picking up a pencil and paper, I was able to find the 2 points where the instantaneous speed are equal in elliptical and circular orbit at the same radius, it is actually right at the perigee and apogee in the orbit ( see the diagram below). In addition, I have find...

are there two points or one in an elliptical orbit where the speed is equal to the speed of a circular orbit at the same radius? if so what is the expression for this point? Thank you