Question

five stages - labeled a, b, c, d, and e - of an objects motion are represented by the position - time graph below. during which stage is the object moving with the greatest speed? tap on the buttons below to answer. select the one best answer.

Explanation:

Step1: Recall speed - slope relation

Speed is the magnitude of velocity, and on a position - time graph, the slope of the graph represents velocity. The steeper the slope, the greater the speed.

Step2: Analyze each stage

• Stage A: Has a positive slope.
• Stage B: Slope is zero (horizontal line, object is at rest).
• Stage C: Has a positive slope, less steep than E.
• Stage D: Slope is zero (horizontal line, object is at rest).
• Stage E: Has a negative slope and is the steepest among all non - zero slope sections.

Answer:

E