# Dynamics of Coupled Pendulums

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Consider a system of two identical pendulums swinging in parallel planes and connected at the top by a flexible string. (A recently published Demonstration considered the related version of two pendulums with their bobs connected by a massless spring.) We describe here a more classic form of the problem, going back to the time of Huygens.

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Contributed by: S. M. Blinder (August 2009)

After work by: Stephen Wilkerson

Open content licensed under CC BY-NC-SA

## Snapshots

## Details

Snapshot 1: in-phase normal mode, starting with

Snapshot 2: out-of phase normal mode

Snapshot 3: two pendulums showing resonant exchange of energy

See this YouTube video for a real-life visualization of this Demonstration.

## Permanent Citation