State whether the following statement is true or false:
$A$ body is said to be at rest if it does not change its position with respect to its reference point.

What is the numerical ratio of average velocity to average speed of an object when it is moving along a straight path?

All buses and cars these days are fitted with a speedometer,which shows the velocity of the vehicle. $A$ device called odometer records the distance moved by the vehicle. If the reading on the odometer of a vehicle in the beginning of a trip and after $40 \text{ minutes}$ were $1048 \text{ km}$ and $1096 \text{ km}$ respectively,calculate its average velocity. Will the reading on the speedometer show this velocity when the vehicle is moving? Support your answer with reason.

The displacement of a body is proportional to the cube of the time lapsed. The magnitude of the acceleration is

State whether the following statement is true or false:
In one-dimensional motion,the average velocity and the instantaneous velocity are unequal.

The following table shows the position of Renu, while she is going to her school. Draw a distance-time graph for her motion.

Time	Distance from her home $(km)$
$06:45 \, am$	$0$
$07:00 \, am$	$8$
$01:30 \, pm$	$8$
$01:45 \, pm$	$0$