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OpenStudy (anonymous):
An eastbound train is traveling 25.5m/s when the engineer applies the brake for 17.0s to reduce the speed of the train to 16.4m/s what is the average accelerating during the 17.0s period?
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OpenStudy (anonymous):
\[V=V_0+a·t \rightarrow a=\frac{ V-V_0 }{ T }=\frac{ 16.4-25.5 }{ 17.0 }\] in m/sec^2 The reason for the negative sign is because the train is slowing down
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