Q2 Following table gives the displacement of a car at different instants of time.

        time(s) :         0   1   2    3    4  
    displacement(m) : 0   5   10   15   20  

(a) Draw the displacement-time sketch and find the average velocity of car.
(b) What will be the displacement of car at (i) 2.5s and (ii) 4.5s?

Solution