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KVPY Sample Paper KVPY Stream-SX Model Paper-26

  • question_answer
    An inelastic ball of mass m has been thrown vertically upwards (positive z-direction) from the ground at \[z=0.\]Linear momentum of ball is \[{{P}_{z}}.\] The phase trajectory (graph between \[{{P}_{z}}\] versus z) of the ball after successive bouncing on the ground is-

    A)

    B)

    C)

    D)

    Correct Answer: C

    Solution :

    Just before collision and just after collision, direction of memntum vector is opposite and speed decreases for each collision.


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