velocity Figure 2.31 Velocity-time graphs for four cars. B C time Table 2.4 Data for a sprinter during a race Displacement 04 (m) Time (s) 10 20 50 80 105 0 1 2 3 6 9 12 5. Figure 2.31 shows how the velocity of four cars changed as they travelled along a straight road. Give reasons for your answers to these questions: (a) Which car was travelling at a steady speed? (b) Which car was decelerating? (c) Which car had the greatest acceleration? 6. Table 2.5 shows how the velocity of a car changed during part of a journey along a main road. (a) Draw a velocity-time graph for the journey. (b) Write a brief description of the journey. (c) The car's speed changed during two parts of the journey. Calculate its acceleration at these times.​