Room setup
Photogate timer configuration
Timer beam is tripped by small cylinder
(coaxial cable core) on string
Thread string between small metal piece
and pendulum bracket; tighten thumb screw
Instructors demo (front view)
Instructors demo (side view)
Configuration of clamps
Knife-edge clamp holds the two
pendulum clamps together
Hang pendula so that their center of mass
is aligned
Pendula will swing in sync
Setup, viewed from above
Forces on bracket