A small object (blue) is placed along the x-axis, equidistant from two identical massive objects (black). Due to the symmetry and gravitational attraction, it oscillates as shown below.
Is there a cost for using this resource?
No
Are there copyright restrictions?
Yes
Physlets, that is, the applets themselves, may be used to author new problems and these problems may be distributed along with the Physlet jar files for non-profit, educational purposes without requesting permission under certain conditions.