Sayan posted an Question
August 27, 2020 • 01:45 am 30 points
  • IIT JAM
  • Physics (PH)

Why dE/dt>0 here?

1 Answer(s) Answer Now
  • 0 Likes
  • 1 Comments
  • 0 Shares
  • Mahak Best Answer

    as moon is moving away from earth ,but due to gravitational attraction earth will pull move towards it so moon have to increase its energy with respect to time in order to overcome gravitational force of earth and that's why energy increases

    eduncle-logo-app

    but sir the said energy is the total earth-moon orbital energy.so if i take energy conservation law then if moons energy increases so earths energy should decerease . Since it's L is conserved so increasing r increases it's moment of inertia so to remain I(omega) constant ,(omega) should decrease . k.E is 1/2I(omega)^2 so it will also decrease then how the energy will increase with time?

    eduncle-logo-app

    sir reply pls..

    eduncle-logo-app

    I will search its proper reason to explain you

whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers