Q. 26

Out of aphelion and perihelion, where is the speed of the earth more and why?

Answer :

Aphelion is the positon of earth from where it has the greatest distance from the sun and perihelion is the position from where it has the shortest distance. Now since the angular momentum of earth about the sun is conserved then we have:


Where m is the mass of the earth, rap is the earth - sun distance at the aphelion and rpe is the earth - sun distance at the perihelion.




Since rap > rpe, vpe > vap, therefore the velocity at the perihelion is greater than the velocity at the aphelion.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Prepare the Topic :  Principle of Superpostion for ExamsPrepare the Topic :  Principle of Superpostion for ExamsPrepare the Topic : Principle of Superpostion for Exams45 mins
Kepler's law of planetary motion | Master important conceptsKepler's law of planetary motion | Master important conceptsKepler's law of planetary motion | Master important concepts45 mins
Getting the basics of GravitationGetting the basics of GravitationGetting the basics of Gravitation51 mins
Gravitation Part 2 | Mastering important conceptsGravitation Part 2 | Mastering important conceptsGravitation Part 2 | Mastering important concepts40 mins
Gravitation Part 1 | Mastering important conceptsGravitation Part 1 | Mastering important conceptsGravitation Part 1 | Mastering important concepts55 mins
Gravitation Quiz | Test Your progressGravitation Quiz | Test Your progressGravitation Quiz | Test Your progress34 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :