Comparing the Motion of Three Cars

Question

A graph titled Position versus time for 3 runners with horizontal axis time (seconds) and vertical axis position (meters). A blue line labeled A has the greatest upward slope followed by an orange line labeled B. A green line labeled C runs from a positive distance above 0 meters at 0 seconds straight across at the same distance for all times. Lines A and B intersect 0 seconds 0 minutes.
Use the drop-down menus to complete each sentence.

is moving the fastest.

is standing still.

started at the same location.

Answer 1

Based on the description of the graph:

1. Car A is moving the fastest (since it has the greatest upward slope).
2. Car C is standing still (since it runs horizontally, indicating no change in position over time).
3. Cars A and B started at the same location (since the lines intersect at the origin, 0 seconds and 0 meters).

So the completed sentences would be:

• Car A is moving the fastest.
• Car C is standing still.
• Cars A and B started at the same location.