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2. After t hours a freight train is s (t) = 16t - 2t miles due north of its starting point for Ost59. (a) Find

2. After t hours a freight train is s (t) = 16t - 2t miles due north of its starting point for Ost59. (a) Find its velocity at time t = 3 hours. (b) Find its acceleration at time t = 1 hour

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