The $x - t$ graph shown in the figure represents:

Which of the following position-time $(s-t)$ graphs represents uniform acceleration?

$A$ car starts from rest and travels with uniform acceleration $\alpha$ for some time and then with uniform retardation $\beta$ and comes to rest. If the total travel time of the car is $t$,the maximum velocity attained by it is given by:

What is the maximum acceleration of the train during the journey in $km \ h^{-2}$?

Explain instantaneous velocity and discuss how it can be determined from an $x-t$ graph.

The velocity-time graph of a body moving along a straight line is shown in the figure. The ratio of the average velocities during the time intervals $t_1$ and $t_2$ is: