A driverless pod is travelling between two stations. The velocity of the pod as it leaves station 1 is measured in metres per second and is shown in the graph below for an interval of 20 minutes. Velocity (ms) 3 -1 -2 -3 7 -5 400 Time (s) 800 1000 Between what times is the pod's velocity constant and non-zero? Determine the value of the pod's acceleration at f=800 s? What is the maximum speed reached by the pod during the 20 minutes shown? In this context what does a negative velocity mean? 5 1200 Approximately what is the furthest distance from station 1 that the pod travels? Give your answer to 3 significant figures. From the graph, by the time it has travelled for 1200 seconds, how far away from station 1 is the pod? Give your answer to 2 significant figures.