A comet is in an elliptical orbit around the Sun. Its closest approach to the Sun is a distance of 4.8 x 1010 meter (inside the orbit of Mercury), determine at which point its speed is 9.6 x 104 m/s. Its farthest distance from the Sun is far beyond the orbit of Pluto.
Find what is its speed when it is 6 x 1012 m from the Sun? (This is the approximate distance of Pluto from the Sun.)