AP Physics 1 Question 421: Answer and Explanation

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Question: 421

9. The graph above is the position-versus-time graph of an object. Which of the following is the velocity-versus-time graph of the object?

  • A.
  • B.
  • C.
  • D.

Correct Answer: D

Explanation:

D

The position of the object is decreasing so the object must be moving in the negative direction with a negative velocity. Eliminate (A) and (B). The position of the object is decreasing at a slower rate over time, so the magnitude of the velocity must be decreasing. Eliminate (C). Choice (D) is correct.