2. The distance of a walker from the start of her walk is given below
at successive intervals of 1second.
Time/s
0
1
2 3
4 5 6
Distance/m
0
3 6 9
12 15 18
a. Sketch a distance-time graph of the following values.
b. How would you describe the speed at which she walks?
constant changing increasing accelerating.
c. Calculate her average speed.