Question

(b) a blimp floats in the same place for a long time. (a) at the end of a race, a runner slows down. for each scenario below, choose the best graph. runners speed runners speed runners speed runners speed time time time time

Explanation:

Step1: Analyze the first graph

The first graph shows speed increasing over time. This represents acceleration, not slowing down.

Step2: Analyze the second graph

The second graph shows speed decreasing over time. This is consistent with a runner slowing down.

Step3: Analyze the third graph

The third graph shows a constant speed. This does not represent slowing down.

Step4: Analyze the fourth graph

The fourth graph is a vertical line, which is not a valid speed - time graph (infinite acceleration in zero time).

Answer:

The second graph (the one where the runner's speed starts at a non - zero value and decreases over time) is the best graph for a runner slowing down at the end of a race.