Question

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

time (sec)	distance (m)
5	20
10	40
15	20
20	0

Explanation:

Step1: Analyze the data trend

From time 0 - 10 sec, distance increases linearly as for every 5 - second interval, distance increases by 20 m. From 10 - 15 sec, distance decreases from 40 m to 20 m and from 15 - 20 sec, it decreases from 20 m to 0 m.

Step2: Match with graphs

The top - left graph shows an increase in distance followed by a decrease which matches the data in the table. The top - right graph shows a non - linear increase and then a leveling off. The bottom - left graph shows an accelerating increase. The bottom - right graph shows only a decrease.

Answer:

The top - left graph.