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9th Class Science Work and energy Question Bank 9th CBSE Science Work and energy

  • question_answer
        The weight of a person on a planet A is about half that on the earth. He can jump up to 0.4 m height on the surface of the earth. How high he can jump on the planet A? 

    Answer:

       The weight of person on the earth = W        Weight of planet  So, the person can jump 2 times higher on the planet. Hence, height of jump on the planet = 2 x 0. 4 = 0.8 m


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