Use position-time graphs to explain what is happening in an example

Answer 1

Let's consider a ball being thrown straight up into the air and then falling back down to the ground.

- The position-time graph for this scenario would show a positive slope as the ball travels upwards, indicating an increase in position over time.
- At the highest point of the ball's trajectory, the slope of the graph would be zero, as the ball momentarily stops before it starts falling back down.
- As the ball descends back to the ground, the position-time graph would show a negative slope, indicating a decrease in position over time.

Overall, the position-time graph would show an upward slope followed by a downward slope, with a moment of zero slope at the peak of the motion. This signifies the ball's journey from being thrown up, reaching its highest point, and then falling back down to the ground.