Question

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

$\begin{array}{cccccc}Time\left(s\right)& 0& 1& 2& 3& 4\\ Displacement\left(m\right)& 0& 5& 10& 15& 20\end{array}$

(a) Draw the displacement-time sketch and find the average velocity of car.

(b) What will be the displacement of car at

(i) 2.5 s and (ii) 4.5 s ?

Answer 1

Displacement-time graph
From the part AB of the graph,
Average velocity = Total displacement/Total time
= 20/4
= 5 m/s
(b) (i) From the graph, the displacement of car at 2.5 s is 12.5 m.
(ii) From the graph, the displacement of car at 4.5 s is 22.5 m