2. A car is travelling along a relatively straight highway 30 km long. For the first 5 minutes of the journey, the car travels at a constant velocity of 30 km/h. After this, the car accelerates to 65 km/h within a 400 m stretch, and stays at this velocity for 14 minutes. The car slows to 50 km/h very quickly (in about 6 seconds) in order to avoid running into a car in front, and slowly sped up to 80 km/h over the remainder of the length of the highway (i. e. reached 80 km/h at the end of the highway) a. Draw a graph showing the acceleration of the car on the highway (v vs. t graph)
b. Draw a graph showing the velocity of the car on the highway (x vs t graph)
c. What is the average velocity of the car over the highway trip?

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.