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JEE Main & Advanced Physics Two Dimensional Motion Question Bank Critical Thinking

  • 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 place in a plane. It follows that                                 [IIT 1987]

    A)             Velocity is constant

    B)             Acceleration is constant

    C)             Kinetic energy is constant

    D)             It moves in a circular path  

    Correct Answer: C

    Solution :

         In the given condition, the particle undergoes uniform circular motion and for uniform circular motion the velocity and acceleration vector changes continuously but kinetic energy is constant for every point.


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