The velocity–time graph (Figure 2.20) represents the motion of a car along a straight road for a period of 30 s.

a. Describe the motion of the car.

b. From the graph, determine the car’s initial and final velocities over the time of 30 s.

c. Determine the acceleration of the car.

d. By calculating the area under the graph, determine the displacement of the car.

e. Check your answer to part d by calculating the car’s displacement using s = ut 1/2 at².

Transcribed Image Text:

v/ms 20 16 12 8 4 10 30 t/s Figure 2.20: For Question 15. 20