JEE Main & Advanced Physics Two Dimensional Motion Question Bank Assertion and Reason

  • question_answer
                Assertion          :           If the speed of a body is constant, the body cannot have a path other than a circular or straight line path. Reason            :           It is not possible for a body to have a constant speed in an accelerated motion.

    A)             If both assertion and reason are true and the reason is the correct explanation of the assertion.            

    B)             If both assertion and reason are true but reason is not the correct explanation of the assertion.            

    C)             If assertion is true but reason is false.            

    D)             If the assertion and reason both are false.            

    E)             If assertion is false but reason is true.

    Correct Answer: D

    Solution :

             If the speed of a body is constant, all curved paths are possible.             In uniform circular motion a body has constant speed, but its direction keeps on changing, due to which it has non-zero acceleration.            


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