Give an example of a body which covers a certain distance, but its displacement is zero
Mention the nature of motion of a body if its displacement$-$time graph is a straight line parallel to time axis.
Mention some uses of velocity$-$time graphs.
Starting from rest a scooter acquires a velocity of $36\, km h^{-1}$ in $10 \,s$ and then brakes are applied it takes $20\, s$ to stop. Calculate acceleration and distance travelled.
Draw displacement$-$time graphs for the following situations
$(i)$ When body is stationary.
$(ii)$ When body is moving with uniform velocity.
$(iii)$ When body is moving with variable velocity.