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019 10.0 points An engineer in a locomotive sees a car stuck on the track at a railroad crossing in front of the train. When the engineer first sees the car, the locomotive is 240 m from the crossing and its speed is 18 m/s. If the engineers reaction time is 0.26 s, what should be the magnitude of the mini- mum deceleration to avoid an accident? Answer in units of m/s.
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