AP Physics 1 Question 426: Answer and Explanation

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Question: 426

4. A rocket is launched into the air. A few moments after liftoff, the rocket is 40 m above the ground. After another 5 s, the rocket is now 200 m off the ground. What is the average velocity of the rocket during the 5 s part of the flight?

  • A. 16 m/s
  • B. 32 m/s
  • C. 48 m/s
  • D. 64 m/s

Correct Answer: B



The average velocity is given by the equation: