Describe the motion represented by a horizontal line on a distance time graph

The distance-time graph shows the nature of the motion with respect to time.

A Horizontal line of the motion on the graph shows that the object is stationary.

The distance-time graph is a relationship between the distance and speed of the object with respect to time. The horizontal axis of the graph represents the time and the vertical axis represents the distance.

The attachment shows the distance-time graph with a horizontal line of motion of an object.

The motion of an object can be determined by the distance traveled in a certain time interval. If the motion is a horizontal line on the graph, it means that for the given time interval, distance remains constant. Thus distance does not change with time.

Hence we can conclude that the horizontal line of motion shows the steady position of an object.

To know more about the distance-time graph, follow the link given below.

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A horizontal line on a distance time graph is saying that the distance doesn't change as time goes on.  This tells us that the object's speed is zero, and its velocity is zero, which pretty much says that the object is stationary ("at rest").

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