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  3. 9th Class
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9th Class Science Sample Paper Science Olympiad Model Test Paper-15

  • question_answer
    Find the initial velocity of a car that is stopped in 10 seconds by applying brakes. Retardation due to break is\[2.5\text{ }m/{{s}^{2}}\].

    A) \[15\text{ }m/s\]

    B) \[\text{20 }m/s\]

    C) \[\text{25 }m/s\]

    D) \[\text{30 }m/s\]

    E) None of these

    Correct Answer: C

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