The velocity$-$time graph of a truck is plotted below

$(a)$ Calculate the magnitude of displacement of the truck in $15$ seconds.

$(b)$ During which part of the journey was the truck decelerating ?

$(c)$ Calculate the magnitude of average velocity of the truck.

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

What can you say about the motion of a body if its displacement$-$time graph is a straight line parallel to the time axis ?

The velocity$-$time graph of a body has a negative slope. The body is undergoing

The position$-$time graph for the motion of a car is given below

$(i)$ How far the car tavelled in the time interval $2$ to $6 s ?$

$(ii)$ During which interval of time its speed was more?

$(iii)$ Calculate the average speed of the car.