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9th Class Science Gravitation and Floatation Question Bank Gravitation and Pressure

  • question_answer
    Two bodies of masses \[20\,\,kg\] and \[15\,\,kg\] are dropped from the top of a building. At any instant during the fall, which of the following energies will both the bodies possess in equal measure?

    A)  Potential energy

    B)  Kinetic energy

    C)  Momentum

    D)  Acceleration  

    Correct Answer: D

    Solution :

     All bodies irrespective of their mass, have the same acceleration due to gravity \[(g=9.8\,\,m\,\,{{s}^{-2}})\] during a free-fall. All other properties like potential energy, kinetic energy and momentum depend on the mass of the body.


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