Fig. shows the distance-time graph of three objects A, B and C. Study the graph and answer the following questions:
(a) Which of the three is travelling the fastest?
(b) Are all three ever at the same point on the road?
(c) How far has C travelled when B passes A?
(d) How far has B travelled by the time it passes C?

Thus, object B is travelling the fastest.
(ii) No, all three objects do not meet at any point on the road.
(iii) When B passes A at point N (at 1.2 hours), C is at a distance of 8 km from the origin O.
(iv) B passes C at 0.7 hours. During this time B covers distance = 6 km.