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Tennis

QuestionAnswer
Qu'est-ce qu'on retrouve sous des baskets de terre battue ? des chevrons
Lorsqu'une balle de tennis tombe, en quoi convertit elle son énergie potentielle de pesanteur ? en énergie cinétique
Et lors de l'impact, lors de la déformation, en quoi est convertie l'énergie cinétique ? en énergie potentielle élastique
Ensuite, lors de la détente, lorsque la balle reprend sa forme initiale, en quoi est convertie l'énergie potentielle élastique ? en énergie cinétique ( rebond )
Pourquoi la balle ne remonte jamais à sa hauteur initiale ? car une partie de l'énergie est dissipée en chaleur et en son
Created by: Nat380
 

 



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