The kinetic energies of a planet in an elliptical orbit about the Sun, at positions A, B and C are KA, KB and KC, respectively. AC is the major axis and SB is perpendicular to AC at the position of the Sun S as shown in the figure. Then :
Answer & explanation
Correct answer: option 2
Point A is perihelion and C is aphelion.
v.r = constant
\(\Rightarrow v = \frac{1}{r}\)
So, vA > vB > vC
So, KA > KB > KC