Question

speed problems
match the graph that best fits the motion from the data table.

time (sec)	distance (m)
5	80
10	60
15	40
20	20

Explanation:

Step1: Analyze the data trend

As time increases from 0 to 20 seconds, the distance decreases from 100m to 20m.

Step2: Match with graphs

The graph where distance decreases linearly with time is the correct one. The first graph shows distance constant over time, the second shows distance increasing linearly with time, the fourth shows distance increasing non - linearly and then leveling off. The third graph shows distance decreasing linearly with time.

Answer:

The third graph (the one with distance decreasing linearly as time increases)