
Speed and Velocity  Problems I.4.1
 Construct an appropriate table and a position versus time graph from the following.
 Does the car have uniform or nonuniform motion? Explain.
 Calculate the car's average speed between 2 s and 4 s.
 Would the car's average speed equal its average velocity? Why or why not?
 What is the car's instantaneous speed at 3 s?
 What is the car's displacement between 1 s and 3 s?

 Determine the slope of this positiontime graph and derive its correct units. What does the slope represent?
 Determine the slope of the straight line segment and derive its correct units. What does the slope represent?

