nikki-phillips_60c25b2b41e64
nikki-phillips_60c25b2b41e64
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carro da mãe x=Xo+V*t -> 200=0+80t ->t=2,5 horas pai: +45 minutos = 0,75h x=Xo+Vo*t ->200=0+v*(2,5-0,75) -> v=200/1,75=114,29 Km/h resposta b)