A comet orbits the sun in a highly elliptical orbit. Does the comet have a constant (a)linear speed, (b) angular speed, (c) angular momentum, (d) kinetic energy, (e) potential energy, (f) total energy throughout its orbit? Neglect any mass loss of the comet when it comes very close to the Sun.
Suppose a comet orbits around sun in elliptical orbit , so its motion will be in accordance with Kepler's laws , now suppose at any instant planet was at a point A at a distance of r from sun and after a while it moved to a point B at a distance R’ from sun in this motion it subtended an angle