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    • Question

      What is the acceleration of an object if it starts from

      rest and reaches a speed of 20 m/s in 5 seconds?
      A 4 m/s² Correct Answer Incorrect Answer
      B 5 m/s² Correct Answer Incorrect Answer
      C 10 m/s² Correct Answer Incorrect Answer
      D 2 m/s² Correct Answer Incorrect Answer
      E None of the above Correct Answer Incorrect Answer

      Solution

      Acceleration = (Final velocity - Initial velocity) / Time = (20 m/s - 0) / 5 s = 4 m/s².

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