In this experiment, students solve a discrepant event involving three balls on an incline.

• Steel Balls (ME-9864)
• Spherical Mass Set (ME-8968)
• 1.2 m Classic Dynamics System (ME-9429A)

• Microsoft Word version of
  this lab: .zip file | .sit file)

Connect the feet to both ends of the track.
Turn the track on its edge and balance it on the mass.
Place three of the 2.5 cm balls on the groove of the track.

• Observe the balls as the instructor tips the incline first in one direction then in the other.

• Without touching the setup, explain your observations.