Question

A body is moving in a straight line and its displacement at various instants of time is given in the following table:

$\begin{array}{ccccccccc}Time\left(s\right)& 0& 1& 2& 3& 4& 5& 6& 7\\ Displacement\left(m\right)& 2& 6& 12& 12& 12& 18& 22& 24\end{array}$

Plot displacement-time graph and calculate:

(i) total distance travelled in interval 1 s to 5 s,

(ii) average velocity in time interval 1 s to 5 s.

Answer 1

(i)
Total distance travelled in interval 1 s to 5s =18-6=12m

(ii)
Avereage velocity=Total displacement in the given time interval/Time interval
12/4=3 m/s