Acceleration of a Car The distance s (in feet) covered by a car t seconds after starting is given by the following function. s= -t3 + 6t2 + 25t (0 sts 6) Find a general expression for the car's acceleration (in ft/sec) at any time t (0 sts 6). s"(t) = Fantastic job! At what time t (in sec) does the car begin to decelerate? (Round your answer to one decimal place.) sec

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