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Mathematics, 26.02.2020 02:17 anastasiasam8996
The position function s(t)=t3−8t gives the position in miles of a freight train where east is the positive direction and t is measured in hours.
a. Determine the direction the train is traveling when s(t)=0 .
b. Determine the direction the train is traveling when a(t)=0 .
c. Determine the time intervals when the train is slowing down or speed up.
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