A train makes a journey from Oxford to Didcot along a completely straight track. It leaves Oxford at time t = 0. Table 1 below shows the velocity v of the train at various times t for the whole journey. Table 1 For use with Question 2. t/s Vx/ms 0 0 40 6 80 12 120 20 160 28 200 36 240 40 280 40 320 40 360 40 400 38 440 30 480 20 520 10 560 4 600 0 (a) (i) Plot a graph of vx against t (use graph paper if plot by hand). you produce the (ii) Using your graph, estimate the distance between Oxford and Didcot. (b) Using your graph of v against t to help you, sketch (not on graph paper) a graph of the distance travelled by the train against time for the whole journey. You do not need to calculate any actual distances for this sketch but you should concentrate on getting the general shape correct and each axis should have an indication of the scale.