What is meant by uniform motion ? Can you think of an example of a body in uniforim motion ?

What can we conclude about the motion of a body depicted by following velocity$-$time graphs ?

The velocity$-$time graph of a car is given below. The car weighs $1000\, kg$.

$(i)$ What is the distance travelled by the car in the first $2$ seconds ?

$(ii)$ What is the braking force at the end of $5$ seconds to bring the car to a stop within one second ?

Answer the following questions

$(i)$ State the type of motion shown by a freely falling stone.

$(ii)$ When a stone is thrown vertically upwards its velocity is continuously decreased. Why ?

$(iii)$ Give an example of a motion in which average velocity is zero, but the average speed is not zero.

$(i)$ What can be depicted from the graph regarding the motion of the object ?

$(ii)$ Find the value of acceleration from the graph.