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NEET Sample Paper NEET Sample Test Paper-20

  • question_answer
    A particle is acted upon by a force of constant magnitude, which is always perpendicular to the velocity of the particle, the motion of the particle takes plane in a plane. It follows that

    A)  its velocity is constant.

    B)  its acceleration is constant.

    C)  its kinetic energy is constant.

    D)  it moves in a straight line.

    Correct Answer: C

    Solution :

    L When a force of constant magnitude which is perpendicular to the velocity of particle acts on a particle work done is zero and hence change in kinetic energy is zero. Hence, the correction option is (c).


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