M. Fabbrichesi , SISSA

In this lesson the professor study in more details the **two-body problem** with central forces, how it is reduced to the equivalent **one-body problem**, classification of the orbits with the help of the Kepler potential and start the derivation of the equations of motion and possible solutions (see **Bertrand's theorem**). In this lesson the professor give the homework number 2 (Homework.2)

Kepler's Laws Tutorial In this video you will be introduced to Kepler's 3 laws and see how they are relevant to orbiting objects. The video also makes use of computer simulations created by PhET Interactive Simulations, University of Colorado.