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The given velocity-time graph shows two different cars that accelerate on a long straight road

Correct answer: B. II only.

  • A. I only.
  • B. II only.
  • C. I and III
  • D. II and III

Explanation

The correct answer is II only. Car II's velocity-time graph demonstrates the acceleration pattern that meets the criteria described in the question. Car I and Car III do not show the correct acceleration characteristics: Car I might accelerate too slowly or decelerate, and Car III's graph might indicate a different acceleration behavior that is not aligned with the requirements. Therefore, only Car II fulfills the necessary conditions.

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About Acceleration

Acceleration measures the rate at which velocity changes with time, including changes in speed, direction or both. Work includes average and instantaneous acceleration, the relation a = Δv/Δt, uniform acceleration equations, and interpreting velocity time and displacement time graphs, with acceleration carefully distinguished from velocity.

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