YEAR 9 PHYSICS 7 The tortoise and the hare run a race against each other. The distance time graph for their race is shown below. The motion of the tortoise is shown by the line AB. That of the hare is shown by the line CDEF. 40 Distance/metres 20 OP 40 80 120 160 Time/ seconds Use the graph to answer the following questions. (a) Over what distance was the race run? (b) What was the average speed of the tortoise in metres per second over this distance? (c) How many seconds start did the tortoise have over the hare? (d) Describe what the hare was doing between the points C and D D and E E and F (e) How long had the tortoise been moving when it was overtaken by the hare? (n What the average speed (in m/s) of the hare over the race (i.e. from to E)? (g) Who won the race and why