Voir la source de Tennis racket rotation

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PIRA index: 1D40.00

==Description==
The center of mass in a tennis racket is at the base of the loop. This is shown when the tennis racket is spun in the air.

==Equipment==
*Tennis racket

==Instructions==
Throw the tennis racket in the air such that it rotates rapidly. The center of mass of the racket will appear to fly in a parabolic pattern.

==Keywords==
tennis racket, centre of mass, rotation

==Images & Movies==
<gallery>
File:1D40.00_1.JPG|Figure1
File:1D40.00_1m.MOV|Video 1
</gallery>