May 2019 1 38 Report
Uma força de modulo F=9 N acelera um bloco de massa m = 1kg sobre uma superficie horizontal sem atrito,conforme a figura.Se este bloco partiu do repouso,ao final de um deslocamento de 4 m,determine: Dado; cos 60°=0,5
A)o trabalho realizado pela força F;
B)a sua velocidade apos percorrer os 4 m.
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