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9th Class Science Sample Paper Science Olympiad Model Test Paper-7

  • question_answer
    A person pulls a block on a horizontal surface by applying a force of 5N at an angle of \[30{}^\circ \]with the horizontal. Find the work done by this force in displacing the block through 2.0 m.

    A) \[4.2\,\,J\]

    B)  \[5\sqrt{3}\,\,J\]

    C)  \[6\sqrt{3}\,\,J\]

    D)  \[8\,\,J\]

    E)  None of these

    Correct Answer: B

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