At t = 0, a train begins decelerating from a speed of 80 mi/hr according to the acceleration function a(t) = −1280(1 + 8t)^-3, where t is measured in hours. a. How far does the train travel in the first 10 minutes? b. There’s an object on the tracks ½ mile away from the train’s initial position. How much time does it take the train to reach the object? Give your answer in seconds.

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