An engineer in a locomotive sees a car stuck on the track at

Last updated: 7/10/2022

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 110 m from the crossing and its speed is 25 m/s. If the engineer's reaction time is 0.2 s, what should be the magnitude of the minimum de- celeration to avoid an accident? Answer in units of m/s².