2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-55

  • question_answer
    A lift is moving downwards with an acceleration equal to the 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 :

    \[{{f}_{k}}=\,\,\mu R,\,\,in\,\,such\,\,case\,\,R=0\] \[\therefore \,\,\,{{f}_{k}}=\,\,0\]


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