JEE Main & Advanced Physics NLM, Friction, Circular Motion Question Bank Third Law of Motion

  • question_answer
    A student attempts to pull himself up by tugging on his hair. He will not succeed                    [KCET 2005]

    A) As the force exerted is small

    B) The frictional force while gripping, is small.

    C) Newton's law of inertia is not applicable to living beings.

    D) As the force applied is internal to the system.

    Correct Answer: D

    Solution :

        As by an internal force momentum of the system can not be changed.


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