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Sweet Spot of Baseball Bat
# 3A15.50


Description: A baseball bat and a simple pendulum are suspended next to each other. Adjust the length of the simple pendulum until its period matches that of the swinging baseball bat. Strike the bat with the supplied stick at the location of the level of the pendulum bob. The bat will recoil more at this location.

Instructions:

Purchased/Built: purchased

Setup Time: 1 hour

Quant. in Demo Room: 1

Source: Central Scientific

Demo References
The Video Encyclopedia of Physics Demonstrations Disc 06-12 Hang a long metal bar by a string from one end. Strike the bar with a mallet at various points.
Freier and Anderson My-7 Hit a baseball bat on a rail suspension at points on and off the center of percussion.
The American Journal of Physics AJP 44(8),789 Hang a rod from a thin steel rod that acts as both a support and a pivot. A styrofoam ball on the thin rod is an indicator of the motion of the end of the hanging rod.

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