3
?
Sam drives his car on a journey.
Here is the travel graph for the first 15 minutes of his journey.
50
40
Distance 30-
travelled
(kilometres) 20-
10-
1000
1010
1030
Time of day
1020
1040
Distance covered
in final 20 mins
1050
(a) Work out Sam's speed, in km/h,
for the first 15 minutes of his
journey.
X
Speed=
At 1015 Sam stops for 10 minutes and then drives for 20 minutes at a speed of 75 km/h.
(b) On the grid, complete the travel graph for Sam's journey.
20
km/h
(2)
(3)