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VMMC VMMC Medical Solved Paper-2014

  • question_answer
    A sphere of mass m makes SHM in a hemispherical bowl ABC and it moves from A to C and back to A uia ABC, so that PB = h. If acceleration due to gravity is g, the speed of the ball when it just crosses the point B is

    A) 2gh                                        

    B) mgh

    C)  \[\sqrt{2gh}\]                  

    D) \[\frac{gh}{2}\]

    Correct Answer: C

    Solution :

    From law of conservation of energy PE at A = KE at B or       \[mgh=\frac{1}{2}m{{v}^{2}}\]or\[v=\sqrt{2gh}\]


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