Can someone PRETTY PLEASE help me understand this page. I'm crying ?

Name Name X = Date 17) Two drivers are running an off road race. (1) They accelerate at a constant rate from rest to a speed of 4.2 m/s in 12 s. (2) They maintain that speed for 100 m. (3) They then hits a patch of firmer ground and is able to accelerate uniformly from 4.2 m/s to 15 m/s in a further 200 meters, (4) then they stop with a uniform deceleration of 1.5 m/s2 a. Calculate the total distance traveled. (The 1-4 are meant to represent each "leg" of the trip) 2. 3. 4. Total: b. Calculate the time for each leg of the trip and the total time taken 4. Total: c) Calculate the average velocity for the entire trip. d) Graph the position vs. time, velocity vs. time, and acceleration vs. time for the entire trip (graphs on next page)