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Exercício de Sistemas dissipativos (PUCSP)
Exercício:
A figura mostra o perfil de uma calha de experimentos. Um carrinho de massa 0,2Kg é lançado no ponto A, com velocidade 3 m/s e desliza ao longo da calha, atingindo uma altura máxima idêntica à altura do lançamento. Qual é a quantidade de energia mecânica dissipada durante o movimento?
Informações Adicionais:
Utilizei o Teorema do trabalho das forças não conservativas. Tentei achar no momento um e depois no momento dois, em cima da próxima ‘crista’.
Calro, não consegui.. pensei certo pelo menos? ^^
A EM = Ec
Daí usando a fórmula da Ec= mv²/2 = 0,2.3³/9 = 0,9J
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