It is known to us that a planet revolves around the sun in an elliptical orbit with the sun at one of the foci. If the point in the orbit nearest to the sun is called the perihelion and the point farthest from the sun is called the aphelion, which of the following statement is correct?
1
The elastic energy due to gravity of the planet is minimum when it is at perihelion.
2
The kinetic energy of the planet is minimum when it is at aphelion.
3
The potential energy due to gravity of the planet is minimum when it is at aphelion.
4
The kinetic energy of the planet is minimum when it is at perihelion.