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9th Class Science Work and energy Question Bank Work, Energy and Power

  • question_answer
    A boy moved a body through 3 m in four different ways. In which of the following cases was the work done the maximum?

    A)  Pushing a body over an inclined plane

    B)  Lifting a body vertically upwards  

    C)  Pushing a body over smooth rollers

    D)  Pushing on a plane horizontal surface

    Correct Answer: B

    Solution :

     More work is done when a body is lifted vertically upwards.


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