Question Detail
Question
What is the average speed from 4 s to 8 s? (from position-time graph)
Correct Answer
Option B is the correct answer.
Detailed Explanation
From the graph, at t=4 s, position ≈ 2 m; at t=8 s, position ≈ 6 m. Distance = 4 m, time = 4 s, average speed = 1 m/s.
Hint
Average speed = total distance / total time.