The displacement - Time graph shows the journey of a woman going to a corner shop then back.

In the graph above, what does the horizontal line represent?

The horizontal line on the displacement - time graph represents the period of time when the woman is stationary or not moving.

The horizontal line on the displacement-time graph represents when the woman is at rest or not moving. It indicates that her displacement from the starting point is zero during that time period.

To determine what the horizontal line represents in the displacement-time graph, we need to understand the basics of such graphs. In a displacement-time graph, displacement is plotted on the y-axis (vertical) and time is plotted on the x-axis (horizontal).

A horizontal line on a displacement-time graph indicates that the object's displacement remains constant over a period of time. It means that the object is not moving and stays at the same position.

In the context of the woman's journey to a corner shop and back, if there is a horizontal line on the graph, it means that during that particular interval of time, the woman's displacement remains constant. This implies that she is neither moving forward nor backward during that time interval.

By observing the duration of the horizontal line on the graph, you can determine the amount of time the woman spent stationary, without changing her position.

It's important to note that the slope of the displacement-time graph represents the woman's velocity, not the horizontal line. A horizontal line represents no change in displacement, indicating a period of no movement.