Answer
See explanation
Work Step by Step
The triangles represent the position of the particle after one second. I can't show it on here, but you need to label the acceleration and velocity vectors in order for this motion diagram to be complete. The acceleration vectors belong at each triangle, and they will be facing towards the left from triangle 1-3 because the car is slowing down, and a = 0 meters per second squared at point 4 because the car has stopped. The velocity vectors will be placed above/below (It's personal preference where you put them) the dashed lines because they represent the direction and magnitude that the particle is travelling.
