Falling Mass Attached to a Rigid Pulley

length of flexible rod

l

0

3

radius of disk r

0.5

release system

A point mass is attached to a thin, dark, flexible lucite rod of length

l

0

that can support both tension and compression. The rod is attached horizontally to the top of a rigid fixed disk of radius

r

. The mass is released and allowed to move under the influence of gravity

g

.