convert everything to k-m-s.
so they are 2900 m apart, and max speed is 30m/s
It takes 30/2.2 seconds to get it to the max speed, during this time a distance of 15*30/2.2 metres is travelled (average speed = 15)
to decelerate from 30m/s to 0 it takes 30/3.3 seconds, during which the distance...