December 2020 0 51 Report
Bonjour, Je suis bloqué à la question 4 de l'exercice.
A la 2 j'ai trouvé Em=Ec+Epp
Ema=Eca+Eppa
Ema=Eppa Ema=m*g*a
A la 3 j'ai Em=Ec+Epp
Emb=Ecb+Eppb Emb=1/2*v^(2)+m×g×0
Merci d'avance​
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