The graph below represents the journey of a cyclist. (a) Distance (m) 250 (d) 200 150 100 50 04 Calculation 0 20 B 40 60 Time (s) 80 100 E 120 Name an instrument that could be used to measure the time taken for the journey. (b) Calculate the average speed of the cyclist as he travelled from point A to point B. (c) Describe the cyclist's motion between points B and C of his journey. 140 The cyclist's speed as he travelled from point A to point B was less than his speed as he travelled from point C to point D. What evidence is there in the graph to support this?