|Distance Travelled in metres||Time Taken in seconds|
For the following data, the graph is drawn like this
|Distance in metre||Time in seconds|
The speed of an object is the distance travelled by it in unit time. It is possible to calculate the speed of an object, both average and instantaneous using a distance - time graph. The speed of an object is calculated from a distance - time graph as the slope. The slope of a line represents how steep it is. In distance - time graphs, slope, which is the average speed is calculated by dividing a change in y value by the corresponding change in x-value. For the speed at a point of time, if the speed is uniform and the line is straight the speed at that point of time can be calculated by dividing y-value by the corresponding x-value. In case the line is curved due to acceleration or deceleration, that is constantly changing speeds, the instantaneous speed at that point of time can be determined by drawing a tangent at that curve and measuring the slope of that tangent.
Question: This diagram shows the motion of a man as he left his house to wander around before coming back. Briefly explain his journey.