9th Class Science Sample Paper Science Olympiad Model Test Paper-20

  • question_answer
    Fill in the blanks with the correct combination of terms.
    If a car weighing \[\underline{\,\,\,\,\,P\,\,\,\,\,\,}\]   and moving with a velocity of  \[\underline{\,\,\,\,\,Q\,\,\,\,\,\,}\]  is stopped in   \[\underline{\,\,\,\,\,R\,\,\,\,\,\,}\]  on applying brakes then the magnitude of retarding force will be\[\underline{\,\,\,\,\,S\,\,\,\,\,\,}\].

    A) \[P-2400\text{ }kg,\] \[Q-10\text{ }m/s,\] \[R-10\text{ }s,\] \[S-4800\text{ }N\]

    B) \[P-2400\text{ }kg,\] \[Q-20\text{ }m/s,\] \[R-6\text{ }s,\]\[S-4800\text{ }N\]

    C) \[P-1200\text{ }kg,\] \[Q-20\text{ }m/s,\] \[R-10\text{ }s,\]\[S-4800\text{ }N\]

    D) \[P-2400\text{ }kg,\] \[Q-20\text{ }m/s,\] \[R-10\text{ }s,\]\[S-4800\text{ }N\]

    E) None of these

    Correct Answer: D


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