KVPY Sample Paper KVPY Stream-SX Model Paper-25

  • question_answer
    A sphere of radius R is in contact with a wedge. The point of contact is R/5 from the ground as shown in the figure. Wedge is moving with velocity 20 m/s, then the velocity of the sphere at this instant will be:

    A) 20 m/s

    B) 15 m/s

    C) 5 m/s

    D) 10 m/s

    Correct Answer: B

    Solution :

    \[20\,\,\sin 37=V\,\,cos37\]
    \[V=20\,\,\tan 37\]
    \[V=20\times \frac{3}{4}\]

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