1. Speed, Distance and Time
10km
20 mins
km/h km
90 mins
5km/h
100m
10sec
m/s
25m
sec
5m/s
miles
24min
5mph
6 miles
min
10mph
25 mins
12mph 30
7.5 10 5 2 36 5

2. Kali uses a running machine to get fit.
The simplified distance-time graph shows how she used the machine during one run.
a) Between 0930 and 0940, what was her speed in kilometres per hour?
b) Throughout the run, how many minutes did she travel at this speed?
c) At 0940, she increased her speed. By how many km/h did she increase her speed?

3. d) On another day, Kali started running at 0935.
She ran for 24 minutes at a constant speed of 10km/h.
Show this information on the graph.