1Q20.30 - Rolling Spool - Axles
Set one end of the incline at a height of about 36 inches. Place the axle of the spool on the incline and observe the velocity as it rolls down the incline. When the spool touches the floor, it will take off at a much higher velocity than it had coming down the incline due to the greater diameter of the fiberglass disks as opposed to the diameter of the axle.
- William P. Boudreau, "Rolling Spool Experiment", TPT, Vol. 10, #8, Nov. 1972, p. 427.
- J. Thomas Dickinson, "Rolling Spool Experiment", TPT, Vol. 10, #4, April 1972, p. 210.
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