A body moves with uniform velocity. Which of the given options shown here is a graph of velocity against time for this motion?

The figure shows the distance-time graph for the motion of two cars $\mathrm{X}$ and $\mathrm{Y}$. Which one of them is moving faster?

The displacement-time graphs of two bodies $A$ and $B$ are shown in figure. Which of the following statements is correct?

An object starts from $\mathrm{O}$ having a straight line motion along the path $\mathrm{OPQRS}$ is represented by the displacement-time graph shown in figure. Match the given statements to the different parts of the graph correctly.

(i) Object is moving with maximum speed.
(ii) Object starts moving in reversed direction.
(iii) Object is at rest.
(iv) Average velocity of object is zero.

Two pendulums of different lengths having bob of different weights are shown in diagrams. With reference to these two pendulums, identify the correct statement.