Engineering Dynamics need help on this review

I think there is integration but I am stuck

A car is moving at 23 ft/s for the first 200 ft of its motion, and then is slowing down to 11.5 ft/s over a distance of 1000 ft. The v-s graph for the car is given below. The car is at s = 0 ft att = 0 s. v ft/s V, V2 - - - - - - s ft 200 400 600 800 1000 1200 P Pearson