1D55.15 - Central Forces - T-Ball on a String

Code Number:
Demo Title:
Central Forces - T-Ball on a String
Forces Due To Circular Motion
Area of Study:
Tennis Ball on String.

Twirl the ball in a circle.  When you let go of the string, the ball will move in a straight line path.  Practice will be required to get the timing down.

  • Paul Hewitt, "Swinging Ball", TPT, Vol. 57, #1, Jan. 2019, p. 3.
  • Paul D. Lee, "Circular Motion", TPT, Vol. 33, #1, Jan. 1995, p. 49.
  • Kaye M. Elsner, "Visualizing Centripetal Force", TPT, Vol. 32, #3, Mar. 1994, p. 176.
  • Ms. Silvia Pugliese Jona, "Tangential Velocity of a Mass on a String", TPT, Vol. 20, #8, Nov. 1982, p. 558.
  • Harvey S. Leff, "Acceleration for Circular Motion", AJP, Vol. 70, #5, May 2002, p. 490.
  • Mb-31, Freier and Anderson,  A Demonstration Handbook for Physics.
  • Borislaw Bilash II and David Maiullo, "Spin Me Around", A Demo a Day: A Year of Physics Demonstrations, p. 126.
  • Julien Clinton Sprott, "1.8, Revolving Ball and Cut String", Physics Demonstrations, ISBN 0-299-21580-6, p. 21.
  • Janice VanCleave, "Speedy", Astronomy for Every Kid - 101 Easy Experiments That Really Work, p. 52 - 53.

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