PIRA Classification: 1Q20.18
Description: Two rods are allowed to swing (independently from each other) from a horizontal support. When the two are released from the same height, they obtain the same motion. A mass can be added to the end of one rod. When the rods are brought to the same height and released, the simple rod reaches the bottom first.
Special Instructions: Perform this demo a few times with the mass at different positions, changing the moment of inertia of the system.
Condition: OK
Setup time: 1 minute
Safety Issues: None