A train starts from rest and accelerates uniformly until it has traveled 6.3/m and acquired a forward velocity of 39.9 . The train then moves at a constant velocity of 39.9 - for 9.5min. The train then slows down uniformly at 0.056#, until it is brought to a halt. How far does the train move during the entire process (in km)? Please explain thoroughly. Thanks a bunch :)