A cyclist covers different distances in equal time intervals as shown below:
First 20 s : 200m
Next 20 s : 210m
Final 20 s : 190m
(i) Calculate the speed during each 20 s interval.
(ii) State whether the motion is uniform, giving one reason.
(iii) Find the average speed for the entire 60 s journey.
a. (i) Speed in each interval
b. (ii) Uniform or non-uniform, with reason
c. (iii) Average speed for 60 s