**The Spring Pendulum **

One can drag the pendulum to it's starting
position.

Once in motion, the pendulum can be 'caught' by clicking and holding the mass.

This applet shows the two dimensional spring pendulum: a mass suspended
on a spring. The pendulum moves under the influence of gravity and the elastic force of
the spring. The apparently simple motion of this system is complex enough that no
equations exist that would describe it's path. The motion of the system is calculated
using Newton's Second Law: a = F_{net} / MMg and the elastic force of the spring F
= - k x |

© Copyright 1997, Sergey Kiselev and Tanya Yanovsky-Kiselev

Last modified: July 12, 1997