Physics, 04.06.2020 19:59, oliviahopebigel

Um automóvel percorre uma estrada com função horária s = - 40 + 80t, onde s é dado em km e t em horas. Qual o instante em que o automóvel passa pelo km zero?

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Um automóvel percorre uma estrada com função horária s = - 40 + 80t, onde s é dado em km e t em hora...