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When a free falling ping-pong ball collides on a horizontal surface, it loseskinetic energy. The ratio between the height reached by the ball after thecollision and the initial height is called restitution coefficient. A method tomeasure it by using a home-made cathetometer was proposed during the Olimpiadidi Fisica 2018. In this paper we show how to measure it also by using thePhyPhox app and Arduino board.

Studio di un urto anelastico: una proposta per le Scuole Secondarie di II grado nell'ambito del progetto "Lab2Go"