A train starts from rest and accelerates uniformly at a rate of 2 m s 2 for 10 s It then maintains a constant speed for 200 s

Question

A train starts from rest and accelerates uniformly at a rate of 2 m s 2 for 10 s It then maintains a constant speed for 200 s The brakes are then applied and the train is uniformly retarded and comes to rest in 50 s Find i the maximum velocity reached ii the retardation in the last 50 s iii the total distance travelled and iv the average velocity of the train Ans i 20 m s ii 0 4 m s 2 iii 4600 m iv 17 69 m s 1

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