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Walking the Spool
# 1K10.30


Description: Pull string. Angle between string and table determines which direction the spool will roll. At some angle the spool will remain stationary.

Parts: large spool with string

Purchased/Built: built

Setup Time: none

Quant. in Demo Room: 1

Demo References
The Video Encyclopedia of Physics Demonstrations Disc 06-07 The sides of the spool are made of clear plexiglass
Hilton M-10d A string wound around the center of a spool is pulled at different angles causing the spool to change directions. Diagram and analysis. See TPT 2(3),139.
Sutton M-24 A string is pulled off the inner axis of a spool at different angles, changing the direction the spool rolls.
Freier and Anderson Mo-3 Pull on a cord wrapped around the axle of a large spool. The spool can be made to go forward or backward depending on the angle.

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