College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

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A train normally travels at a uniform speed of 72 km/h on a long stretch of straight, level track. On a particular day, the train must make a 2.0-min stop at a station along this hack. If the train decelerates at a uniform rate of 1.0 m/s 2 and, after the stop, accelerates at a rate of 0.50 m/s 2 , how much time is lost because of stopping at the station