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

  • question_answer
               The kinetic energy of an object of mass m moving with velocity of 5 m/s is 25 J. (a) What will be its kinetic energy when its velocity is doubled? (b) What will be its kinetic energy when its velocity is increased three times?

    Answer:

             Here, (a) (b)


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