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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/s┬▓ Correct Answer Incorrect Answer
    B 3 m/s┬▓ Correct Answer Incorrect Answer
    C 4 m/s┬▓ Correct Answer Incorrect Answer
    D 5 m/s┬▓ Correct Answer Incorrect Answer

    Solution

    Acceleration (a) = (v - u) / t = (40 - 20) / 10 = 20 / 10 = 2 m/s┬▓

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