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9th Class Science Sample Paper Science Olympiad Model Test Paper-5

  • question_answer
    Calculate the force of gravitation due to earth on a ball of mass 60 kg. (Mass of earth = \[6\times {{10}^{24}}kg\]  and radius of earth = \[6.4\times {{10}^{3}}km\])

    A) 588.8 N

    B) 512.2 N

    C) 632.6 N

    D) 724.5 N

    E) None of these

    Correct Answer: A

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