How will you show that the slope of the displacement-time graph gives the velocity of the body?

A car is moving on a straight road with a uniform acceleration. The following table gives the speed of the car at various instants of time.

(i) Draw the shape of speed-time graph representing the above sets of observations.

(ii)Find the acceleration of the car.

How can you calculate the following?

(i) Speed from distance-time graph?

(ii) Acceleration from velocity-time graph.

(iii) Displacement from velocity-time graph.

Given below is the velocity-time graph for the motion of the car. What does the nature of the graph show? Also, find the acceleration of the car.

(i) If the velocity-time graph of an object is parallel to X-axis, then what does it mean? Can it be parallel to Y-axis?

(ii) What type of motion is represented by each one of the following graphs?

(iii) A bus increases its speed from 36 km/h to 54 km/h in 10 s. Find its acceleration.