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At t=0, a train approaching a station begins decelerating from a speed of 80 mi/hr according to the acceleration function a(t)=−1280(1+8t)^−3, where t≥0 is measured in hours. how far does the train travel? a. between t=0 and t=0.2 b. between t=0.2 and t=0.4 the units of acceleration are mi/hr^2.
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