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      Question

      A car accelerates from 20 m/s to 40 m/s in 10 seconds.

      What is its acceleration?
      A 2 m/s² Correct Answer Incorrect Answer
      B 3 m/s² Correct Answer Incorrect Answer
      C 4 m/s² Correct Answer Incorrect Answer
      D 5 m/s² Correct Answer Incorrect Answer

      Solution

      Acceleration (a) = (v - u) / t = (40 - 20) / 10 = 20 / 10 = 2 m/s²

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