Q. A sprinter in a 100m race , covers 4 m in first second , 30 m in next 4 seconds and 52 m in another 4 seconds and finishes the race in 10 seconds.
(i) Calculate the average speed of the sprinter.
​(ii) What is the peak value attained by the sprinter ?
(iii) During which time interval is the acceleration highest ?
(iv) Plot the distance-time graph and velocity -time graph for the race.
(v) Show on the graph the velocity of the sprinter at the end of 5 seconds.