The graph shows Lara walking from home to school along a straight road. The distance is measured from her home in kilometres.
Time (minutes) on the horizontal axis; Distance from home (km) on the vertical axis.
From 0 to 10 minutes the graph is a straight line from (0, 0) to (10, 1.2). From 10 to 20 minutes the graph is horizontal at distance 1.2 km.
Use the graph to answer the questions.
Figure (to be drawn): Distance-time graph for Lara: straight line from (0,0) to (10,1.2) then horizontal at 1.2 from 10 to 20.
(a)Work out Lara's average speed in km/h between 0 and 10 minutes.(1)
(b)State what the horizontal line from 10 to 20 minutes tells you about Lara's motion.(1)
(Total for Question 1 is 2 marks)