2. Solved Papers
  3. DUMET Medical

DUMET Medical DUMET Medical Solved Paper-2004

  • question_answer
    A lift is moving downwards with an acceleration equal to acceleration due to gravity. A body of mass m kept on the floor of the lift is pulled horizontally. If the coefficient of friction is \[\mu \] then the frictional resistance offered by the body is :

    A)  \[mg\]           

    B)  \[\mu mg\]

    C)  \[2\mu mg\]       

    D)  zero

    Correct Answer: D

    Solution :

     Lift is moving down with acceleration due to gravity, hence, it falls freely. In this case apparent weight of body in lift is zero, therefore no frictional resistance will be offered by the body.


You need to login to perform this action.
You will be redirected in 3 sec spinner