School of Physics Lecture Demonstration Manual

Mj-2 Centre of Mass Motion

Published: Thursday 09 March 2006 - Updated: Thursday 24 March 2011

Aim

To demonstrate that the centre of mass of a system subject to no external forces remains stationary.

Apparatus

Diagrams

Click on pictures to enlarge.

Centre of Mass Motion

Centre of MassGlider Diagram

Videos

Centre of Mass Stationary

Centre of Mass Motion

Description

The glider consists of a freely swinging pendulum. As the pendulum swings back and forth the glider moves in such a way that the centre of mass remains at rest.

Safety notes

Electrical safety 

Maintenance 

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