When the man returned to the 0 meters on the position-time graph, the line representing his position decreased or went down. This is because the position-time graph represents the change in position of the object over time. As the man moves away from the 0 meters position, the position value increases and is plotted above the x-axis (positive side). However, when the man returns to the 0 meters position, the position value decreases and is plotted below the x-axis (negative side).
The graph decreases because the position is measured relative to a reference point, in this case, the 0 meters point. As the man moves away from the reference point, the position increases in a positive direction. But as he comes back towards the reference point, his position decreases and becomes negative.
Therefore, when the man returns to the 0 meters position on the position-time graph, the line representing his position decreases below the x-axis, indicating a negative position relative to the reference point.
What happened to the line on the Position-Time Graph (Blue Graph) when the man returned to the 0 meters? Explain why (the graph decreases)
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