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NEET Sample Paper NEET Sample Test Paper-60

  • question_answer
    A body of mass 2kg is thrown up vertically with kinetic energy of 490J. It g = 10m/s2, the height at which the kinetic energy of the body becomes half of the original value is:

    A) 50m                 

    B) 25m   

    C) 12.5m              

    D) 19.6m

    Correct Answer: C

    Solution :

    [b] For the satellite, the gravitational force provides the necessary centripetal force \[\frac{GMm}{{{(R+x)}^{2}}}=\frac{mv_{2}^{2}}{(R+x)}and\,\frac{GM}{{{R}^{2}}}=g\] \[{{v}_{0}}=\sqrt{\frac{g{{R}^{2}}}{R+x}}\]


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